{
  "adi_d1": {
    "ci": [
      60.9,
      64.2
    ],
    "ciLevel": 0.95,
    "display": "62.5",
    "estimand": "vote-weighted mean rank; 95% interval clustered by county",
    "n": 8076,
    "note": "",
    "period": "2020 presidential election; EJScreen 2.3 air data for 2020",
    "population": "census tracts in decile 1 of diesel exposure with an ADI rank",
    "source": "adi",
    "unit": "Area Deprivation Index national rank (1 = least deprived, 100 = most deprived)",
    "value": 62.5259,
    "weights": "votes cast in the tract, 2020 presidential election (pres_tot)"
  },
  "adi_d10": {
    "ci": [
      16.2,
      28.2
    ],
    "ciLevel": 0.95,
    "display": "22.2",
    "estimand": "vote-weighted mean rank; 95% interval clustered by county",
    "n": 8073,
    "note": "",
    "period": "2020 presidential election; EJScreen 2.3 air data for 2020",
    "population": "census tracts in decile 10 of diesel exposure with an ADI rank",
    "source": "adi",
    "unit": "Area Deprivation Index national rank (1 = least deprived, 100 = most deprived)",
    "value": 22.2123,
    "weights": "votes cast in the tract, 2020 presidential election (pres_tot)"
  },
  "adi_national": {
    "ci": [
      42.2,
      47.4
    ],
    "ciLevel": 0.95,
    "display": "44.8",
    "estimand": "vote-weighted mean rank; 95% interval clustered by county",
    "n": 80849,
    "note": "",
    "period": "2020 presidential election; EJScreen 2.3 air data for 2020",
    "population": "all sample tracts with an ADI rank",
    "source": "adi",
    "unit": "Area Deprivation Index national rank (1 = least deprived, 100 = most deprived)",
    "value": 44.8164,
    "weights": "votes cast in the tract, 2020 presidential election (pres_tot)"
  },
  "asthma_ctrl": {
    "ci": [
      -0.04,
      0.12
    ],
    "ciLevel": 0.95,
    "display": "0.04",
    "estimand": "weighted least squares coefficient of the tract asthma estimate on standardized diesel exposure, with race, income and education held fixed; 95% interval clustered by county",
    "n": 81134,
    "note": "",
    "period": "PLACES release not recorded in the atlas file",
    "population": "census tracts with more than 100 votes in 2020 and complete pollution, control and land-area data",
    "source": "cdc-places",
    "unit": "percentage points of adults with current asthma per standard deviation of diesel exposure",
    "value": 0.0434039,
    "weights": "votes cast in the tract, 2020 presidential election (pres_tot)"
  },
  "asthma_d1": {
    "ci": [
      11,
      11.1
    ],
    "ciLevel": 0.95,
    "display": "11.0%",
    "estimand": "vote-weighted mean of the tract estimate; 95% interval clustered by county",
    "n": 8114,
    "note": "",
    "period": "PLACES release not recorded in the atlas file",
    "population": "census tracts in decile 1 of diesel exposure",
    "source": "cdc-places",
    "unit": "percent of adults with current asthma (model-based tract estimate)",
    "value": 11.0295,
    "weights": "votes cast in the tract, 2020 presidential election (pres_tot)"
  },
  "asthma_d10": {
    "ci": [
      9.6,
      10.3
    ],
    "ciLevel": 0.95,
    "display": "9.9%",
    "estimand": "vote-weighted mean of the tract estimate; 95% interval clustered by county",
    "n": 8114,
    "note": "",
    "period": "PLACES release not recorded in the atlas file",
    "population": "census tracts in decile 10 of diesel exposure",
    "source": "cdc-places",
    "unit": "percent of adults with current asthma (model-based tract estimate)",
    "value": 9.92032,
    "weights": "votes cast in the tract, 2020 presidential election (pres_tot)"
  },
  "asthma_dens": {
    "ci": [
      -0.11,
      0.07
    ],
    "ciLevel": 0.95,
    "display": "−0.02",
    "estimand": "weighted least squares coefficient of the tract asthma estimate on standardized diesel exposure, with race, income, education and density held fixed; 95% interval clustered by county",
    "n": 81134,
    "note": "",
    "period": "PLACES release not recorded in the atlas file",
    "population": "census tracts with more than 100 votes in 2020 and complete pollution, control and land-area data",
    "source": "cdc-places",
    "unit": "percentage points of adults with current asthma per standard deviation of diesel exposure",
    "value": -0.0200531,
    "weights": "votes cast in the tract, 2020 presidential election (pres_tot)"
  },
  "asthma_raw": {
    "ci": [
      -0.35,
      -0.14
    ],
    "ciLevel": 0.95,
    "display": "−0.25",
    "estimand": "weighted least squares coefficient of the tract asthma estimate on standardized diesel exposure, with no controls; 95% interval clustered by county",
    "n": 81134,
    "note": "",
    "period": "PLACES release not recorded in the atlas file",
    "population": "census tracts with more than 100 votes in 2020 and complete pollution, control and land-area data",
    "source": "cdc-places",
    "unit": "percentage points of adults with current asthma per standard deviation of diesel exposure",
    "value": -0.24628,
    "weights": "votes cast in the tract, 2020 presidential election (pres_tot)"
  },
  "ces_all_ctrl": {
    "ci": [
      0.9,
      1.7
    ],
    "ciLevel": 0.95,
    "display": "1.3",
    "estimand": "weighted linear probability model coefficient on standardized county diesel exposure, specification: party id and demographics; 95% interval clustered by county",
    "n": 57411,
    "note": "",
    "period": "2020",
    "population": "all respondents in the CES 2020 sample",
    "source": "ces",
    "unit": "percentage points of support per standard deviation of county diesel exposure",
    "value": 1.30272,
    "weights": "CES 2020 weight (weight)"
  },
  "ces_all_dens": {
    "ci": [
      -1.1,
      0.4
    ],
    "ciLevel": 0.95,
    "display": "−0.4",
    "estimand": "weighted linear probability model coefficient on standardized county diesel exposure, specification: plus county density; 95% interval clustered by county",
    "n": 57411,
    "note": "",
    "period": "2020",
    "population": "all respondents in the CES 2020 sample",
    "source": "ces",
    "unit": "percentage points of support per standard deviation of county diesel exposure",
    "value": -0.376833,
    "weights": "CES 2020 weight (weight)"
  },
  "ces_all_raw": {
    "ci": [
      5.3,
      7.6
    ],
    "ciLevel": 0.95,
    "display": "6.4",
    "estimand": "weighted linear probability model coefficient on standardized county diesel exposure, specification: no controls; 95% interval clustered by county",
    "n": 57411,
    "note": "",
    "period": "2020",
    "population": "all respondents in the CES 2020 sample",
    "source": "ces",
    "unit": "percentage points of support per standard deviation of county diesel exposure",
    "value": 6.43357,
    "weights": "CES 2020 weight (weight)"
  },
  "ces_counties": {
    "display": "2,630",
    "estimand": "count of counties with a respondent",
    "note": "",
    "period": "2020",
    "population": "CES 2020 respondents with an answer on the EPA enforcement item, a seven-point party ID and a county in the tract sample",
    "source": "ces",
    "unit": "counties",
    "value": 2630,
    "weights": "none (count)"
  },
  "ces_dem_ctrl": {
    "ci": [
      -0.6,
      1
    ],
    "ciLevel": 0.95,
    "display": "0.2",
    "estimand": "weighted linear probability model coefficient on standardized county diesel exposure, specification: party id and demographics; 95% interval clustered by county",
    "n": 28671,
    "note": "",
    "period": "2020",
    "population": "democrats in the CES 2020 sample",
    "source": "ces",
    "unit": "percentage points of support per standard deviation of county diesel exposure",
    "value": 0.167609,
    "weights": "CES 2020 weight (weight)"
  },
  "ces_dem_raw": {
    "ci": [
      -0.8,
      0.8
    ],
    "ciLevel": 0.95,
    "display": "0.0",
    "estimand": "weighted linear probability model coefficient on standardized county diesel exposure, specification: no controls; 95% interval clustered by county",
    "n": 28671,
    "note": "",
    "period": "2020",
    "population": "democrats in the CES 2020 sample",
    "source": "ces",
    "unit": "percentage points of support per standard deviation of county diesel exposure",
    "value": 0.0279126,
    "weights": "CES 2020 weight (weight)"
  },
  "ces_diesel_sd": {
    "display": "0.12",
    "estimand": "survey-weighted standard deviation of county diesel exposure across respondents",
    "note": "",
    "period": "2020",
    "population": "CES 2020 respondents with an answer on the EPA enforcement item, a seven-point party ID and a county in the tract sample",
    "source": "ces",
    "unit": "micrograms per cubic meter of diesel particulate matter",
    "value": 0.123065,
    "weights": "CES 2020 weight (weight)"
  },
  "ces_n": {
    "display": "57,411",
    "estimand": "count of respondents",
    "note": "",
    "period": "2020",
    "population": "CES 2020 respondents with an answer on the EPA enforcement item, a seven-point party ID and a county in the tract sample",
    "source": "ces",
    "unit": "respondents",
    "value": 57411,
    "weights": "none (count)"
  },
  "ces_q1_dem": {
    "ci": [
      30.9,
      33.7
    ],
    "ciLevel": 0.95,
    "display": "32.3%",
    "estimand": "weighted share; 95% interval clustered by county",
    "n": 11483,
    "note": "",
    "period": "2020",
    "population": "CES respondents in the lowest fifth of county diesel exposure",
    "source": "ces",
    "unit": "percent Democratic (party ID 1 to 3)",
    "value": 32.2978,
    "weights": "CES 2020 weight (weight)"
  },
  "ces_q1_support": {
    "ci": [
      49.8,
      52.7
    ],
    "ciLevel": 0.95,
    "display": "51.2%",
    "estimand": "weighted share; 95% interval clustered by county",
    "n": 11483,
    "note": "",
    "period": "2020",
    "population": "CES respondents in the lowest fifth of county diesel exposure",
    "source": "ces",
    "unit": "percent supporting stronger EPA enforcement of the Clean Air Act and Clean Water Act, even if it costs U.S. jobs",
    "value": 51.2489,
    "weights": "CES 2020 weight (weight)"
  },
  "ces_q5_counties": {
    "display": "54",
    "estimand": "count of counties with a respondent in the group",
    "note": "",
    "period": "2020",
    "population": "CES respondents in the highest fifth of county diesel exposure",
    "source": "ces",
    "unit": "counties",
    "value": 54,
    "weights": "none (count)"
  },
  "ces_q5_dem": {
    "ci": [
      56,
      62
    ],
    "ciLevel": 0.95,
    "display": "59.0%",
    "estimand": "weighted share; 95% interval clustered by county",
    "n": 11482,
    "note": "",
    "period": "2020",
    "population": "CES respondents in the highest fifth of county diesel exposure",
    "source": "ces",
    "unit": "percent Democratic (party ID 1 to 3)",
    "value": 58.993,
    "weights": "CES 2020 weight (weight)"
  },
  "ces_q5_support": {
    "ci": [
      67.2,
      71.8
    ],
    "ciLevel": 0.95,
    "display": "69.5%",
    "estimand": "weighted share; 95% interval clustered by county",
    "n": 11482,
    "note": "",
    "period": "2020",
    "population": "CES respondents in the highest fifth of county diesel exposure",
    "source": "ces",
    "unit": "percent supporting stronger EPA enforcement of the Clean Air Act and Clean Water Act, even if it costs U.S. jobs",
    "value": 69.5156,
    "weights": "CES 2020 weight (weight)"
  },
  "ces_rep_ctrl": {
    "ci": [
      1.2,
      4.8
    ],
    "ciLevel": 0.95,
    "display": "3.0",
    "estimand": "weighted linear probability model coefficient on standardized county diesel exposure, specification: party id and demographics; 95% interval clustered by county",
    "n": 20097,
    "note": "",
    "period": "2020",
    "population": "republicans in the CES 2020 sample",
    "source": "ces",
    "unit": "percentage points of support per standard deviation of county diesel exposure",
    "value": 2.98274,
    "weights": "CES 2020 weight (weight)"
  },
  "ces_rep_dens": {
    "ci": [
      -1.4,
      3.4
    ],
    "ciLevel": 0.95,
    "display": "1.0",
    "estimand": "weighted linear probability model coefficient on standardized county diesel exposure, specification: plus county density; 95% interval clustered by county",
    "n": 20097,
    "note": "",
    "period": "2020",
    "population": "republicans in the CES 2020 sample",
    "source": "ces",
    "unit": "percentage points of support per standard deviation of county diesel exposure",
    "value": 0.991032,
    "weights": "CES 2020 weight (weight)"
  },
  "ces_rep_raw": {
    "ci": [
      2.4,
      6.2
    ],
    "ciLevel": 0.95,
    "display": "4.3",
    "estimand": "weighted linear probability model coefficient on standardized county diesel exposure, specification: no controls; 95% interval clustered by county",
    "n": 20097,
    "note": "",
    "period": "2020",
    "population": "republicans in the CES 2020 sample",
    "source": "ces",
    "unit": "percentage points of support per standard deviation of county diesel exposure",
    "value": 4.27257,
    "weights": "CES 2020 weight (weight)"
  },
  "ces_support": {
    "ci": [
      58.5,
      60.8
    ],
    "ciLevel": 0.95,
    "display": "59.7%",
    "estimand": "weighted share; 95% interval clustered by county",
    "n": 57411,
    "note": "",
    "period": "2020",
    "population": "CES 2020 respondents with an answer on the EPA enforcement item, a seven-point party ID and a county in the tract sample",
    "source": "ces",
    "unit": "percent supporting stronger EPA enforcement of the Clean Air Act and Clean Water Act, even if it costs U.S. jobs",
    "value": 59.6689,
    "weights": "CES 2020 weight (weight)"
  },
  "ces_support_dem": {
    "ci": [
      85.3,
      86.9
    ],
    "ciLevel": 0.95,
    "display": "86.1%",
    "estimand": "weighted share; 95% interval clustered by county",
    "n": 28671,
    "note": "",
    "period": "2020",
    "population": "Democratic respondents (seven-point party ID, leaners included)",
    "source": "ces",
    "unit": "percent supporting stronger EPA enforcement of the Clean Air Act and Clean Water Act, even if it costs U.S. jobs",
    "value": 86.0813,
    "weights": "CES 2020 weight (weight)"
  },
  "ces_support_ind": {
    "ci": [
      58,
      61.4
    ],
    "ciLevel": 0.95,
    "display": "59.7%",
    "estimand": "weighted share; 95% interval clustered by county",
    "n": 8643,
    "note": "",
    "period": "2020",
    "population": "Independent respondents (seven-point party ID, leaners included)",
    "source": "ces",
    "unit": "percent supporting stronger EPA enforcement of the Clean Air Act and Clean Water Act, even if it costs U.S. jobs",
    "value": 59.6836,
    "weights": "CES 2020 weight (weight)"
  },
  "ces_support_rep": {
    "ci": [
      29.5,
      31.7
    ],
    "ciLevel": 0.95,
    "display": "30.6%",
    "estimand": "weighted share; 95% interval clustered by county",
    "n": 20097,
    "note": "",
    "period": "2020",
    "population": "Republican respondents (seven-point party ID, leaners included)",
    "source": "ces",
    "unit": "percent supporting stronger EPA enforcement of the Clean Air Act and Clean Water Act, even if it costs U.S. jobs",
    "value": 30.5827,
    "weights": "CES 2020 weight (weight)"
  },
  "college_at_peak": {
    "display": "41%",
    "estimand": "vote-weighted mean of the tract share of adults with a college degree, in the decile where mean income peaks",
    "n": 8113,
    "note": "",
    "period": "2020 votes; ACS tract shares",
    "population": "census tracts in decile 6 of diesel exposure",
    "source": "rlcr",
    "unit": "percent (share of adults with a college degree)",
    "value": 41.4908,
    "weights": "votes cast in the tract, 2020 presidential election (pres_tot)"
  },
  "college_d10": {
    "display": "42%",
    "estimand": "vote-weighted mean of the tract share of adults with a college degree",
    "n": 8114,
    "note": "",
    "period": "2020 votes; ACS tract shares",
    "population": "census tracts in decile 10 of diesel exposure",
    "source": "rlcr",
    "unit": "percent (share of adults with a college degree)",
    "value": 42.0741,
    "weights": "votes cast in the tract, 2020 presidential election (pres_tot)"
  },
  "density_d1": {
    "display": "14",
    "estimand": "median across tracts in the decile",
    "n": 8114,
    "note": "",
    "period": "2020 votes; ACS tract population and land area",
    "population": "census tracts in decile 1 of diesel exposure",
    "source": "rlcr",
    "unit": "people per square kilometer",
    "value": 13.9539,
    "weights": "none (each tract counts once)"
  },
  "density_d10": {
    "display": "5,167",
    "estimand": "median across tracts in the decile",
    "n": 8114,
    "note": "",
    "period": "2020 votes; ACS tract population and land area",
    "population": "census tracts in decile 10 of diesel exposure",
    "source": "rlcr",
    "unit": "people per square kilometer",
    "value": 5167.4,
    "weights": "none (each tract counts once)"
  },
  "diesel_cap": {
    "display": "0.6",
    "estimand": "the diesel view of the county map stops its color scale at this value",
    "note": "",
    "period": "2020 presidential election; EJScreen 2.3 air data for 2020",
    "population": "counties on the map",
    "source": "ejscreen",
    "unit": "micrograms per cubic meter of diesel particulate matter",
    "value": 0.6,
    "weights": "none (constant)"
  },
  "diesel_ctrl": {
    "ci": [
      8.1,
      12.6
    ],
    "ciLevel": 0.95,
    "display": "10.3",
    "estimand": "weighted least squares coefficient on the standardized diesel particulate matter exposure, with race, income and education held fixed; 95% interval clustered by county",
    "n": 81134,
    "note": "",
    "period": "2020 presidential election; EJScreen 2.3 air data for 2020",
    "population": "census tracts with more than 100 votes in 2020 and complete pollution, control and land-area data",
    "source": "rlcr",
    "unit": "percentage points of Democratic two-party margin per standard deviation of the exposure",
    "value": 10.3351,
    "weights": "votes cast in the tract, 2020 presidential election (pres_tot)"
  },
  "diesel_ctrl_kept": {
    "ci": [
      36,
      48
    ],
    "ciLevel": 0.95,
    "display": "42%",
    "estimand": "ratio of the diesel coefficient with race, income and education held fixed to the diesel coefficient with no controls (ratio of point estimates); 95% interval from a county bootstrap (2,000 replicates)",
    "n": 81134,
    "note": "",
    "period": "2020 presidential election; EJScreen 2.3 air data for 2020",
    "population": "census tracts with more than 100 votes in 2020 and complete pollution, control and land-area data",
    "source": "rlcr",
    "unit": "percent of the no-controls diesel coefficient",
    "value": 41.7515,
    "weights": "none (ratio of estimates)"
  },
  "diesel_dens": {
    "ci": [
      2.6,
      7.2
    ],
    "ciLevel": 0.95,
    "display": "4.9",
    "estimand": "weighted least squares coefficient on the standardized diesel particulate matter exposure, with race, income, education and density held fixed; 95% interval clustered by county",
    "n": 81134,
    "note": "",
    "period": "2020 presidential election; EJScreen 2.3 air data for 2020",
    "population": "census tracts with more than 100 votes in 2020 and complete pollution, control and land-area data",
    "source": "rlcr",
    "unit": "percentage points of Democratic two-party margin per standard deviation of the exposure",
    "value": 4.90499,
    "weights": "votes cast in the tract, 2020 presidential election (pres_tot)"
  },
  "diesel_dens20": {
    "ci": [
      1.1,
      5.8
    ],
    "ciLevel": 0.95,
    "display": "3.4",
    "estimand": "diesel coefficient with race, income and education held fixed and density entered as 20 equal-size bins instead of a log term; 95% interval clustered by county",
    "n": 81134,
    "note": "",
    "period": "2020 presidential election; EJScreen 2.3 air data for 2020",
    "population": "census tracts with more than 100 votes in 2020 and complete pollution, control and land-area data",
    "source": "rlcr",
    "unit": "percentage points of Democratic two-party margin per standard deviation of the exposure",
    "value": 3.44116,
    "weights": "votes cast in the tract, 2020 presidential election (pres_tot)"
  },
  "diesel_dens_kept": {
    "ci": [
      12,
      27
    ],
    "ciLevel": 0.95,
    "display": "20%",
    "estimand": "ratio of the diesel coefficient with race, income, education and density held fixed to the diesel coefficient with no controls (ratio of point estimates); 95% interval from a county bootstrap (2,000 replicates)",
    "n": 81134,
    "note": "",
    "period": "2020 presidential election; EJScreen 2.3 air data for 2020",
    "population": "census tracts with more than 100 votes in 2020 and complete pollution, control and land-area data",
    "source": "rlcr",
    "unit": "percent of the no-controls diesel coefficient",
    "value": 19.815,
    "weights": "none (ratio of estimates)"
  },
  "diesel_dens_state": {
    "ci": [
      0.2,
      9.6
    ],
    "ciLevel": 0.95,
    "display": "4.9",
    "estimand": "same coefficient as diesel with race, income, education and density held fixed, with the interval clustered by state (47 clusters)",
    "n": 81134,
    "note": "",
    "period": "2020 presidential election; EJScreen 2.3 air data for 2020",
    "population": "census tracts with more than 100 votes in 2020 and complete pollution, control and land-area data",
    "source": "rlcr",
    "unit": "percentage points of Democratic two-party margin per standard deviation of the exposure",
    "value": 4.90499,
    "weights": "votes cast in the tract, 2020 presidential election (pres_tot)"
  },
  "diesel_fe": {
    "ci": [
      5.3,
      8.9
    ],
    "ciLevel": 0.95,
    "display": "7.1",
    "estimand": "weighted least squares coefficient on the standardized diesel particulate matter exposure, within county, with race, income, education and density held fixed; 95% interval clustered by county",
    "n": 81134,
    "note": "",
    "period": "2020 presidential election; EJScreen 2.3 air data for 2020",
    "population": "census tracts with more than 100 votes in 2020 and complete pollution, control and land-area data",
    "source": "rlcr",
    "unit": "percentage points of Democratic two-party margin per standard deviation of the exposure",
    "value": 7.07414,
    "weights": "votes cast in the tract, 2020 presidential election (pres_tot)"
  },
  "diesel_med_d5": {
    "display": "0.14",
    "estimand": "median across tracts in the decile",
    "n": 8113,
    "note": "",
    "period": "EJScreen 2.3, 2020 modeled air data",
    "population": "census tracts in decile 5 of diesel exposure",
    "source": "ejscreen",
    "unit": "micrograms per cubic meter of diesel particulate matter",
    "value": 0.143817,
    "weights": "none (each tract counts once)"
  },
  "diesel_raw": {
    "ci": [
      21.5,
      28
    ],
    "ciLevel": 0.95,
    "display": "24.8",
    "estimand": "weighted least squares coefficient on the standardized diesel particulate matter exposure, with no controls; 95% interval clustered by county",
    "n": 81134,
    "note": "",
    "period": "2020 presidential election; EJScreen 2.3 air data for 2020",
    "population": "census tracts with more than 100 votes in 2020 and complete pollution, control and land-area data",
    "source": "rlcr",
    "unit": "percentage points of Democratic two-party margin per standard deviation of the exposure",
    "value": 24.7539,
    "weights": "votes cast in the tract, 2020 presidential election (pres_tot)"
  },
  "diesel_sd": {
    "display": "0.14",
    "estimand": "standard deviation across tracts (unweighted)",
    "note": "",
    "period": "EJScreen 2.3, 2020 modeled air data",
    "population": "census tracts with more than 100 votes in 2020 and complete pollution, control and land-area data",
    "source": "ejscreen",
    "unit": "micrograms per cubic meter of diesel particulate matter",
    "value": 0.14404,
    "weights": "none (each tract counts once)"
  },
  "diesel_top5_hi": {
    "display": "0.75",
    "estimand": "highest county mean of tract diesel exposure (vote-weighted)",
    "note": "",
    "period": "2020 presidential election; EJScreen 2.3 air data for 2020",
    "population": "counties with at least one tract in the sample",
    "source": "ejscreen",
    "unit": "micrograms per cubic meter of diesel particulate matter",
    "value": 0.74622,
    "weights": "votes cast in the county, 2020 presidential election"
  },
  "diesel_top5_lo": {
    "display": "0.56",
    "estimand": "fifth-highest county mean of tract diesel exposure (vote-weighted)",
    "note": "",
    "period": "2020 presidential election; EJScreen 2.3 air data for 2020",
    "population": "counties with at least one tract in the sample",
    "source": "ejscreen",
    "unit": "micrograms per cubic meter of diesel particulate matter",
    "value": 0.558117,
    "weights": "votes cast in the county, 2020 presidential election"
  },
  "ejscreen_version": {
    "display": "2.3",
    "estimand": "version of the tool, identified from the indicators and values in the atlas",
    "note": "",
    "period": "released July 2024",
    "population": "the EPA EJScreen release identified in the tract atlas",
    "source": "ejscreen",
    "unit": "EJScreen version number",
    "value": 2.3,
    "weights": "none (identifier)"
  },
  "fe_diff_diesel": {
    "ci": [
      -0.4,
      5.3
    ],
    "ciLevel": 0.95,
    "display": "+2.2",
    "estimand": "within-county coefficient on the standardized diesel exposure minus the pooled coefficient with race, income, education and density; 95% interval from a county bootstrap (2,000 replicates)",
    "n": 81134,
    "note": "",
    "period": "2020 presidential election; EJScreen 2.3 air data for 2020",
    "population": "census tracts with more than 100 votes in 2020 and complete pollution, control and land-area data",
    "source": "rlcr",
    "unit": "percentage points of Democratic two-party margin per standard deviation of the exposure",
    "value": 2.16914,
    "weights": "none (difference of two weighted least squares coefficients)"
  },
  "fe_diff_no2": {
    "ci": [
      0.5,
      5.3
    ],
    "ciLevel": 0.95,
    "display": "+2.8",
    "estimand": "within-county coefficient on the standardized nitrogen dioxide exposure minus the pooled coefficient with race, income, education and density; 95% interval from a county bootstrap (2,000 replicates)",
    "n": 81134,
    "note": "",
    "period": "2020 presidential election; EJScreen 2.3 air data for 2020",
    "population": "census tracts with more than 100 votes in 2020 and complete pollution, control and land-area data",
    "source": "rlcr",
    "unit": "percentage points of Democratic two-party margin per standard deviation of the exposure",
    "value": 2.84948,
    "weights": "none (difference of two weighted least squares coefficients)"
  },
  "fe_diff_traffic": {
    "ci": [
      -4.4,
      -0.1
    ],
    "ciLevel": 0.95,
    "display": "−2.1",
    "estimand": "within-county coefficient on the standardized traffic proximity exposure minus the pooled coefficient with race, income, education and density; 95% interval from a county bootstrap (2,000 replicates)",
    "n": 81134,
    "note": "",
    "period": "2020 presidential election; EJScreen 2.3 air data for 2020",
    "population": "census tracts with more than 100 votes in 2020 and complete pollution, control and land-area data",
    "source": "rlcr",
    "unit": "percentage points of Democratic two-party margin per standard deviation of the exposure",
    "value": -2.09,
    "weights": "none (difference of two weighted least squares coefficients)"
  },
  "hispanic_d1": {
    "display": "9%",
    "estimand": "vote-weighted mean of the tract share of residents who are Hispanic",
    "n": 8114,
    "note": "",
    "period": "2020 votes; ACS tract shares",
    "population": "census tracts in decile 1 of diesel exposure",
    "source": "rlcr",
    "unit": "percent (share of residents who are Hispanic)",
    "value": 9.38561,
    "weights": "votes cast in the tract, 2020 presidential election (pres_tot)"
  },
  "hispanic_d10": {
    "display": "33%",
    "estimand": "vote-weighted mean of the tract share of residents who are Hispanic",
    "n": 8114,
    "note": "",
    "period": "2020 votes; ACS tract shares",
    "population": "census tracts in decile 10 of diesel exposure",
    "source": "rlcr",
    "unit": "percent (share of residents who are Hispanic)",
    "value": 33.4322,
    "weights": "votes cast in the tract, 2020 presidential election (pres_tot)"
  },
  "income_d1": {
    "display": "$70,000",
    "estimand": "vote-weighted mean of tract median household income",
    "n": 8114,
    "note": "The display is rounded to the nearest thousand dollars; the stored value is exact.",
    "period": "2020 votes; ACS tract incomes",
    "population": "census tracts in decile 1 of diesel exposure",
    "source": "rlcr",
    "unit": "dollars (median household income of the tract, rounded to the nearest thousand)",
    "value": 69754.4,
    "weights": "votes cast in the tract, 2020 presidential election (pres_tot)"
  },
  "income_d10": {
    "display": "$97,000",
    "estimand": "vote-weighted mean of tract median household income",
    "n": 8114,
    "note": "The display is rounded to the nearest thousand dollars; the stored value is exact.",
    "period": "2020 votes; ACS tract incomes",
    "population": "census tracts in decile 10 of diesel exposure",
    "source": "rlcr",
    "unit": "dollars (median household income of the tract, rounded to the nearest thousand)",
    "value": 96619.6,
    "weights": "votes cast in the tract, 2020 presidential election (pres_tot)"
  },
  "income_peak": {
    "display": "$102,000",
    "estimand": "highest decile mean of tract median household income (vote-weighted)",
    "n": 8113,
    "note": "The display is rounded to the nearest thousand dollars; the stored value is exact.",
    "period": "2020 votes; ACS tract incomes",
    "population": "census tracts in decile 6 of diesel exposure",
    "source": "rlcr",
    "unit": "dollars (median household income of the tract, rounded to the nearest thousand)",
    "value": 102082,
    "weights": "votes cast in the tract, 2020 presidential election (pres_tot)"
  },
  "income_peak_decile": {
    "display": "6",
    "estimand": "decile with the highest vote-weighted mean tract income",
    "note": "",
    "period": "2020 votes; ACS tract incomes",
    "population": "census tracts",
    "source": "rlcr",
    "unit": "decile of diesel exposure",
    "value": 6,
    "weights": "none (identifier)"
  },
  "joint_diesel": {
    "ci": [
      -2.1,
      4.6
    ],
    "ciLevel": 0.95,
    "display": "1.3",
    "estimand": "coefficient on standardized diesel in one model with diesel, traffic, nitrogen dioxide and fine particles together, plus race, income, education and density; 95% interval clustered by county",
    "n": 81134,
    "note": "",
    "period": "2020 presidential election; EJScreen 2.3 air data for 2020",
    "population": "census tracts with more than 100 votes in 2020 and complete pollution, control and land-area data",
    "source": "rlcr",
    "unit": "percentage points of Democratic two-party margin per standard deviation of the exposure",
    "value": 1.29403,
    "weights": "votes cast in the tract, 2020 presidential election (pres_tot)"
  },
  "joint_traffic": {
    "ci": [
      5.6,
      11.7
    ],
    "ciLevel": 0.95,
    "display": "8.7",
    "estimand": "coefficient on standardized traffic in one model with diesel, traffic, nitrogen dioxide and fine particles together, plus race, income, education and density; 95% interval clustered by county",
    "n": 81134,
    "note": "",
    "period": "2020 presidential election; EJScreen 2.3 air data for 2020",
    "population": "census tracts with more than 100 votes in 2020 and complete pollution, control and land-area data",
    "source": "rlcr",
    "unit": "percentage points of Democratic two-party margin per standard deviation of the exposure",
    "value": 8.65356,
    "weights": "votes cast in the tract, 2020 presidential election (pres_tot)"
  },
  "map_cap": {
    "display": "40",
    "estimand": "the county map colors stop at this distance from zero",
    "note": "",
    "period": "2020 presidential election; EJScreen 2.3 air data for 2020",
    "population": "counties on the map",
    "source": "rlcr",
    "unit": "percentage points",
    "value": 40,
    "weights": "none (constant)"
  },
  "map_northeast": {
    "display": "+14.5",
    "estimand": "mean over counties, weighted by county votes, of the residual margin net of race, income and education (a positive value is more Democratic than the model predicts)",
    "n": 209,
    "note": "",
    "period": "2020 presidential election; EJScreen 2.3 air data for 2020",
    "population": "counties of the Northeast census region in the sample",
    "source": "rlcr",
    "unit": "percentage points of Democratic two-party margin",
    "value": 14.4822,
    "weights": "votes cast in the county, 2020 presidential election"
  },
  "map_south": {
    "display": "−15.9",
    "estimand": "mean over counties, weighted by county votes, of the residual margin net of race, income and education (a positive value is more Democratic than the model predicts)",
    "n": 1419,
    "note": "",
    "period": "2020 presidential election; EJScreen 2.3 air data for 2020",
    "population": "counties of the South census region in the sample",
    "source": "rlcr",
    "unit": "percentage points of Democratic two-party margin",
    "value": -15.8667,
    "weights": "votes cast in the county, 2020 presidential election"
  },
  "margin_d1": {
    "ci": [
      -32.2,
      -27.4
    ],
    "ciLevel": 0.95,
    "display": "−29.8",
    "estimand": "vote-weighted mean tract margin; 95% interval clustered by county",
    "n": 8114,
    "note": "",
    "period": "2020 presidential election; EJScreen 2.3 air data for 2020",
    "population": "census tracts in decile 1 of diesel exposure",
    "source": "rlcr",
    "unit": "percentage points of Democratic two-party margin",
    "value": -29.8245,
    "weights": "votes cast in the tract, 2020 presidential election (pres_tot)"
  },
  "margin_d10": {
    "ci": [
      42.4,
      55.8
    ],
    "ciLevel": 0.95,
    "display": "+49.1",
    "estimand": "vote-weighted mean tract margin; 95% interval clustered by county",
    "n": 8114,
    "note": "",
    "period": "2020 presidential election; EJScreen 2.3 air data for 2020",
    "population": "census tracts in decile 10 of diesel exposure",
    "source": "rlcr",
    "unit": "percentage points of Democratic two-party margin",
    "value": 49.1188,
    "weights": "votes cast in the tract, 2020 presidential election (pres_tot)"
  },
  "margin_d5": {
    "ci": [
      -1.8,
      4.7
    ],
    "ciLevel": 0.95,
    "display": "+1.4",
    "estimand": "vote-weighted mean tract margin; 95% interval clustered by county",
    "n": 8113,
    "note": "",
    "period": "2020 presidential election; EJScreen 2.3 air data for 2020",
    "population": "census tracts in decile 5 of diesel exposure",
    "source": "rlcr",
    "unit": "percentage points of Democratic two-party margin",
    "value": 1.42353,
    "weights": "votes cast in the tract, 2020 presidential election (pres_tot)"
  },
  "margin_gap": {
    "ci": [
      71.8,
      86.1
    ],
    "ciLevel": 0.95,
    "display": "78.9",
    "estimand": "difference in vote-weighted mean margin, top decile minus bottom decile; 95% interval clustered by county",
    "n": 16228,
    "note": "",
    "period": "2020 presidential election; EJScreen 2.3 air data for 2020",
    "population": "census tracts in the top and bottom decile of diesel exposure",
    "source": "rlcr",
    "unit": "percentage points of Democratic two-party margin",
    "value": 78.9432,
    "weights": "votes cast in the tract, 2020 presidential election (pres_tot)"
  },
  "n_atlas_tracts": {
    "display": "82,765",
    "estimand": "count of tracts",
    "note": "",
    "period": "2020 presidential election",
    "population": "tracts in the 2020 tract atlas",
    "source": "rlcr",
    "unit": "census tracts",
    "value": 82765,
    "weights": "none (count)"
  },
  "n_counties_d1": {
    "display": "1,824",
    "estimand": "count of counties with at least one tract in the decile",
    "note": "",
    "period": "2020 presidential election; EJScreen 2.3 air data for 2020",
    "population": "census tracts in decile 1 of diesel exposure",
    "source": "rlcr",
    "unit": "counties",
    "value": 1824,
    "weights": "none (count)"
  },
  "n_counties_d10": {
    "display": "112",
    "estimand": "count of counties with at least one tract in the decile",
    "note": "",
    "period": "2020 presidential election; EJScreen 2.3 air data for 2020",
    "population": "census tracts in decile 10 of diesel exposure",
    "source": "rlcr",
    "unit": "counties",
    "value": 112,
    "weights": "none (count)"
  },
  "n_counties_sample": {
    "display": "3,096",
    "estimand": "count of counties",
    "note": "",
    "period": "2020 presidential election; EJScreen 2.3 air data for 2020",
    "population": "counties with at least one tract in the sample",
    "source": "rlcr",
    "unit": "counties",
    "value": 3096,
    "weights": "none (count)"
  },
  "n_density_bins": {
    "display": "20",
    "estimand": "number of equal-size bins of log density that replace the log term in the robustness model",
    "note": "",
    "period": "2020 presidential election; EJScreen 2.3 air data for 2020",
    "population": "census tracts with more than 100 votes in 2020 and complete pollution, control and land-area data",
    "source": "rlcr",
    "unit": "bins",
    "value": 20,
    "weights": "none (constant)"
  },
  "n_over100": {
    "display": "81,617",
    "estimand": "count of tracts",
    "note": "",
    "period": "2020 presidential election; EJScreen 2.3 air data for 2020",
    "population": "tracts in the atlas with more than 100 estimated votes",
    "source": "rlcr",
    "unit": "census tracts",
    "value": 81617,
    "weights": "none (count)"
  },
  "n_over_clamp": {
    "display": "343",
    "estimand": "count of counties whose residual margin net of race, income and education is more than 40 points from zero",
    "note": "",
    "period": "2020 presidential election; EJScreen 2.3 air data for 2020",
    "population": "counties with at least one tract in the sample",
    "source": "rlcr",
    "unit": "counties",
    "value": 343,
    "weights": "none (count)"
  },
  "n_over_diesel_cap": {
    "display": "3",
    "estimand": "count of counties whose vote-weighted mean tract diesel exposure is above the map cap",
    "note": "",
    "period": "2020 presidential election; EJScreen 2.3 air data for 2020",
    "population": "counties with at least one tract in the sample",
    "source": "ejscreen",
    "unit": "counties",
    "value": 3,
    "weights": "none (count)"
  },
  "n_per_decile": {
    "display": "8,113 or 8,114",
    "estimand": "count of tracts in each decile (deciles are cut on the rank of exposure, so the counts differ by at most one)",
    "note": "",
    "period": "2020 presidential election; EJScreen 2.3 air data for 2020",
    "population": "census tracts with more than 100 votes in 2020 and complete pollution, control and land-area data",
    "source": "rlcr",
    "unit": "census tracts per decile of diesel exposure",
    "value": 8113.4,
    "weights": "none (count)"
  },
  "n_states": {
    "display": "47",
    "estimand": "count of states",
    "note": "",
    "period": "2020 presidential election; EJScreen 2.3 air data for 2020",
    "population": "states with at least one tract in the sample",
    "source": "rlcr",
    "unit": "states",
    "value": 47,
    "weights": "none (count)"
  },
  "n_tracts": {
    "display": "81,134",
    "estimand": "count of tracts",
    "note": "",
    "period": "2020 presidential election; EJScreen 2.3 air data for 2020",
    "population": "census tracts with more than 100 votes in 2020 and complete pollution, control and land-area data",
    "source": "rlcr",
    "unit": "census tracts",
    "value": 81134,
    "weights": "none (count)"
  },
  "no2_ctrl": {
    "ci": [
      8.3,
      11.9
    ],
    "ciLevel": 0.95,
    "display": "10.1",
    "estimand": "weighted least squares coefficient on the standardized nitrogen dioxide exposure, with race, income and education held fixed; 95% interval clustered by county",
    "n": 81134,
    "note": "",
    "period": "2020 presidential election; EJScreen 2.3 air data for 2020",
    "population": "census tracts with more than 100 votes in 2020 and complete pollution, control and land-area data",
    "source": "rlcr",
    "unit": "percentage points of Democratic two-party margin per standard deviation of the exposure",
    "value": 10.0748,
    "weights": "votes cast in the tract, 2020 presidential election (pres_tot)"
  },
  "no2_dens": {
    "ci": [
      1.5,
      5.8
    ],
    "ciLevel": 0.95,
    "display": "3.6",
    "estimand": "weighted least squares coefficient on the standardized nitrogen dioxide exposure, with race, income, education and density held fixed; 95% interval clustered by county",
    "n": 81134,
    "note": "",
    "period": "2020 presidential election; EJScreen 2.3 air data for 2020",
    "population": "census tracts with more than 100 votes in 2020 and complete pollution, control and land-area data",
    "source": "rlcr",
    "unit": "percentage points of Democratic two-party margin per standard deviation of the exposure",
    "value": 3.63256,
    "weights": "votes cast in the tract, 2020 presidential election (pres_tot)"
  },
  "no2_fe": {
    "ci": [
      5.2,
      7.8
    ],
    "ciLevel": 0.95,
    "display": "6.5",
    "estimand": "weighted least squares coefficient on the standardized nitrogen dioxide exposure, within county, with race, income, education and density held fixed; 95% interval clustered by county",
    "n": 81134,
    "note": "",
    "period": "2020 presidential election; EJScreen 2.3 air data for 2020",
    "population": "census tracts with more than 100 votes in 2020 and complete pollution, control and land-area data",
    "source": "rlcr",
    "unit": "percentage points of Democratic two-party margin per standard deviation of the exposure",
    "value": 6.48204,
    "weights": "votes cast in the tract, 2020 presidential election (pres_tot)"
  },
  "no2_raw": {
    "ci": [
      22.3,
      26.3
    ],
    "ciLevel": 0.95,
    "display": "24.3",
    "estimand": "weighted least squares coefficient on the standardized nitrogen dioxide exposure, with no controls; 95% interval clustered by county",
    "n": 81134,
    "note": "",
    "period": "2020 presidential election; EJScreen 2.3 air data for 2020",
    "population": "census tracts with more than 100 votes in 2020 and complete pollution, control and land-area data",
    "source": "rlcr",
    "unit": "percentage points of Democratic two-party margin per standard deviation of the exposure",
    "value": 24.3144,
    "weights": "votes cast in the tract, 2020 presidential election (pres_tot)"
  },
  "no2_sd": {
    "display": "3.5",
    "estimand": "standard deviation across tracts (unweighted)",
    "note": "",
    "period": "EJScreen 2.3, 2020 modeled air data",
    "population": "census tracts with more than 100 votes in 2020 and complete pollution, control and land-area data",
    "source": "ejscreen",
    "unit": "parts per billion of nitrogen dioxide",
    "value": 3.51324,
    "weights": "none (each tract counts once)"
  },
  "pm25_ctrl": {
    "ci": [
      -1.4,
      3.1
    ],
    "ciLevel": 0.95,
    "display": "0.9",
    "estimand": "weighted least squares coefficient on the standardized fine particles (pm2.5) exposure, with race, income and education held fixed; 95% interval clustered by county",
    "n": 81134,
    "note": "",
    "period": "2020 presidential election; EJScreen 2.3 air data for 2020",
    "population": "census tracts with more than 100 votes in 2020 and complete pollution, control and land-area data",
    "source": "rlcr",
    "unit": "percentage points of Democratic two-party margin per standard deviation of the exposure",
    "value": 0.858529,
    "weights": "votes cast in the tract, 2020 presidential election (pres_tot)"
  },
  "pm25_dens": {
    "ci": [
      -2.8,
      1.4
    ],
    "ciLevel": 0.95,
    "display": "−0.7",
    "estimand": "weighted least squares coefficient on the standardized fine particles (pm2.5) exposure, with race, income, education and density held fixed; 95% interval clustered by county",
    "n": 81134,
    "note": "",
    "period": "2020 presidential election; EJScreen 2.3 air data for 2020",
    "population": "census tracts with more than 100 votes in 2020 and complete pollution, control and land-area data",
    "source": "rlcr",
    "unit": "percentage points of Democratic two-party margin per standard deviation of the exposure",
    "value": -0.720538,
    "weights": "votes cast in the tract, 2020 presidential election (pres_tot)"
  },
  "pm25_raw": {
    "ci": [
      5.3,
      12.2
    ],
    "ciLevel": 0.95,
    "display": "8.8",
    "estimand": "weighted least squares coefficient on the standardized fine particles (pm2.5) exposure, with no controls; 95% interval clustered by county",
    "n": 81134,
    "note": "",
    "period": "2020 presidential election; EJScreen 2.3 air data for 2020",
    "population": "census tracts with more than 100 votes in 2020 and complete pollution, control and land-area data",
    "source": "rlcr",
    "unit": "percentage points of Democratic two-party margin per standard deviation of the exposure",
    "value": 8.75334,
    "weights": "votes cast in the tract, 2020 presidential election (pres_tot)"
  },
  "pm25_sd": {
    "display": "2.1",
    "estimand": "standard deviation across tracts (unweighted)",
    "note": "",
    "period": "EJScreen 2.3, 2020 modeled air data",
    "population": "census tracts with more than 100 votes in 2020 and complete pollution, control and land-area data",
    "source": "ejscreen",
    "unit": "micrograms per cubic meter of fine particles",
    "value": 2.06843,
    "weights": "none (each tract counts once)"
  },
  "r_county_lean_demog": {
    "ci": [
      0.17,
      0.34
    ],
    "ciLevel": 0.95,
    "display": "+0.26",
    "estimand": "correlation across counties, weighted by county votes, of county diesel exposure with the county mean residual margin after a tract model of race, income and education; 95% interval from a county bootstrap (2,000 replicates)",
    "n": 3096,
    "note": "",
    "period": "2020 presidential election; EJScreen 2.3 air data for 2020",
    "population": "counties with at least one tract in the sample",
    "source": "rlcr",
    "unit": "correlation coefficient, from −1 to +1",
    "value": 0.260628,
    "weights": "votes cast in the county, 2020 presidential election"
  },
  "r_county_lean_demog_state": {
    "ci": [
      0.01,
      0.41
    ],
    "ciLevel": 0.95,
    "display": "+0.18",
    "estimand": "correlation across counties, weighted by county votes, of county diesel exposure with the county mean residual margin after a tract model of race, income and education, both measured from their vote-weighted state means (within-state); 95% interval from resampling the 47 states (2,000 replicates)",
    "n": 3096,
    "note": "",
    "period": "2020 presidential election; EJScreen 2.3 air data for 2020",
    "population": "counties with at least one tract in the sample",
    "source": "rlcr",
    "unit": "correlation coefficient, from −1 to +1",
    "value": 0.180677,
    "weights": "votes cast in the county, 2020 presidential election"
  },
  "r_county_lean_demog_unw": {
    "ci": [
      0.25,
      0.3
    ],
    "ciLevel": 0.95,
    "display": "+0.27",
    "estimand": "unweighted correlation across counties (each county counts once) of county diesel exposure with the county mean residual margin after a tract model of race, income and education; 95% interval from a county bootstrap (2,000 replicates)",
    "n": 3096,
    "note": "",
    "period": "2020 presidential election; EJScreen 2.3 air data for 2020",
    "population": "counties with at least one tract in the sample",
    "source": "rlcr",
    "unit": "correlation coefficient, from −1 to +1",
    "value": 0.273858,
    "weights": "none (each county counts once)"
  },
  "r_county_lean_dens": {
    "ci": [
      -0.02,
      0.17
    ],
    "ciLevel": 0.95,
    "display": "+0.08",
    "estimand": "correlation across counties, weighted by county votes, of county diesel exposure with the county mean residual margin after a tract model of race, income, education and density; 95% interval from a county bootstrap (2,000 replicates)",
    "n": 3096,
    "note": "",
    "period": "2020 presidential election; EJScreen 2.3 air data for 2020",
    "population": "counties with at least one tract in the sample",
    "source": "rlcr",
    "unit": "correlation coefficient, from −1 to +1",
    "value": 0.0794141,
    "weights": "votes cast in the county, 2020 presidential election"
  },
  "r_county_lean_dens_state": {
    "ci": [
      -0.21,
      0.16
    ],
    "ciLevel": 0.95,
    "display": "−0.07",
    "estimand": "correlation across counties, weighted by county votes, of county diesel exposure with the county mean residual margin after a tract model of race, income, education and density, both measured from their vote-weighted state means (within-state); 95% interval from resampling the 47 states (2,000 replicates)",
    "n": 3096,
    "note": "",
    "period": "2020 presidential election; EJScreen 2.3 air data for 2020",
    "population": "counties with at least one tract in the sample",
    "source": "rlcr",
    "unit": "correlation coefficient, from −1 to +1",
    "value": -0.0659331,
    "weights": "votes cast in the county, 2020 presidential election"
  },
  "r_county_lean_dens_unw": {
    "ci": [
      -0.09,
      -0.03
    ],
    "ciLevel": 0.95,
    "display": "−0.06",
    "estimand": "unweighted correlation across counties (each county counts once) of county diesel exposure with the county mean residual margin after a tract model of race, income, education and density; 95% interval from a county bootstrap (2,000 replicates)",
    "n": 3096,
    "note": "",
    "period": "2020 presidential election; EJScreen 2.3 air data for 2020",
    "population": "counties with at least one tract in the sample",
    "source": "rlcr",
    "unit": "correlation coefficient, from −1 to +1",
    "value": -0.0591703,
    "weights": "none (each county counts once)"
  },
  "r_diesel_density": {
    "ci": [
      0.66,
      0.71
    ],
    "ciLevel": 0.95,
    "display": "+0.68",
    "estimand": "vote-weighted correlation across tracts of diesel exposure with log population density; 95% interval from a county bootstrap (2,000 replicates)",
    "n": 81134,
    "note": "",
    "period": "EJScreen 2.3, 2020 modeled air data; ACS population",
    "population": "census tracts with more than 100 votes in 2020 and complete pollution, control and land-area data",
    "source": "ejscreen",
    "unit": "correlation coefficient, from −1 to +1",
    "value": 0.68246,
    "weights": "votes cast in the tract, 2020 presidential election (pres_tot)"
  },
  "r_diesel_no2": {
    "ci": [
      0.66,
      0.76
    ],
    "ciLevel": 0.95,
    "display": "+0.72",
    "estimand": "vote-weighted correlation across tracts of diesel exposure with nitrogen dioxide; 95% interval from a county bootstrap (2,000 replicates)",
    "n": 81134,
    "note": "",
    "period": "EJScreen 2.3, 2020 modeled air data",
    "population": "census tracts with more than 100 votes in 2020 and complete pollution, control and land-area data",
    "source": "ejscreen",
    "unit": "correlation coefficient, from −1 to +1",
    "value": 0.716774,
    "weights": "votes cast in the tract, 2020 presidential election (pres_tot)"
  },
  "r_diesel_traffic": {
    "ci": [
      0.58,
      0.77
    ],
    "ciLevel": 0.95,
    "display": "+0.68",
    "estimand": "vote-weighted correlation across tracts of diesel exposure with traffic proximity; 95% interval from a county bootstrap (2,000 replicates)",
    "n": 81134,
    "note": "",
    "period": "EJScreen 2.3, 2020 modeled air data",
    "population": "census tracts with more than 100 votes in 2020 and complete pollution, control and land-area data",
    "source": "ejscreen",
    "unit": "correlation coefficient, from −1 to +1",
    "value": 0.679063,
    "weights": "votes cast in the tract, 2020 presidential election (pres_tot)"
  },
  "resid_between_state": {
    "display": "61%",
    "estimand": "share of the vote-weighted variance of the county residual margin (net of race, income and education) that lies between states: one minus the ratio of the within-state variance to the total variance",
    "n": 3096,
    "note": "A descriptive ratio of variances with no interval.",
    "period": "2020 presidential election; EJScreen 2.3 air data for 2020",
    "population": "counties with at least one tract in the sample",
    "source": "rlcr",
    "unit": "percent of the vote-weighted variance of the county residual margin",
    "value": 60.874,
    "weights": "votes cast in the county, 2020 presidential election"
  },
  "traffic_ctrl": {
    "ci": [
      9,
      15.3
    ],
    "ciLevel": 0.95,
    "display": "12.2",
    "estimand": "weighted least squares coefficient on the standardized traffic proximity exposure, with race, income and education held fixed; 95% interval clustered by county",
    "n": 81134,
    "note": "",
    "period": "2020 presidential election; EJScreen 2.3 air data for 2020",
    "population": "census tracts with more than 100 votes in 2020 and complete pollution, control and land-area data",
    "source": "rlcr",
    "unit": "percentage points of Democratic two-party margin per standard deviation of the exposure",
    "value": 12.195,
    "weights": "votes cast in the tract, 2020 presidential election (pres_tot)"
  },
  "traffic_dens": {
    "ci": [
      6.1,
      11.3
    ],
    "ciLevel": 0.95,
    "display": "8.7",
    "estimand": "weighted least squares coefficient on the standardized traffic proximity exposure, with race, income, education and density held fixed; 95% interval clustered by county",
    "n": 81134,
    "note": "",
    "period": "2020 presidential election; EJScreen 2.3 air data for 2020",
    "population": "census tracts with more than 100 votes in 2020 and complete pollution, control and land-area data",
    "source": "rlcr",
    "unit": "percentage points of Democratic two-party margin per standard deviation of the exposure",
    "value": 8.68768,
    "weights": "votes cast in the tract, 2020 presidential election (pres_tot)"
  },
  "traffic_fe": {
    "ci": [
      4.6,
      8.6
    ],
    "ciLevel": 0.95,
    "display": "6.6",
    "estimand": "weighted least squares coefficient on the standardized traffic proximity exposure, within county, with race, income, education and density held fixed; 95% interval clustered by county",
    "n": 81134,
    "note": "",
    "period": "2020 presidential election; EJScreen 2.3 air data for 2020",
    "population": "census tracts with more than 100 votes in 2020 and complete pollution, control and land-area data",
    "source": "rlcr",
    "unit": "percentage points of Democratic two-party margin per standard deviation of the exposure",
    "value": 6.59768,
    "weights": "votes cast in the tract, 2020 presidential election (pres_tot)"
  },
  "traffic_raw": {
    "ci": [
      19.2,
      30.2
    ],
    "ciLevel": 0.95,
    "display": "24.7",
    "estimand": "weighted least squares coefficient on the standardized traffic proximity exposure, with no controls; 95% interval clustered by county",
    "n": 81134,
    "note": "",
    "period": "2020 presidential election; EJScreen 2.3 air data for 2020",
    "population": "census tracts with more than 100 votes in 2020 and complete pollution, control and land-area data",
    "source": "rlcr",
    "unit": "percentage points of Democratic two-party margin per standard deviation of the exposure",
    "value": 24.7048,
    "weights": "votes cast in the tract, 2020 presidential election (pres_tot)"
  },
  "traffic_sd": {
    "display": "2.4 million",
    "estimand": "standard deviation across tracts (unweighted)",
    "note": "",
    "period": "EJScreen 2.3, 2020 highway counts",
    "population": "census tracts with more than 100 votes in 2020 and complete pollution, control and land-area data",
    "source": "ejscreen",
    "unit": "traffic proximity score (annual average daily traffic on major roads divided by distance)",
    "value": 2385210,
    "weights": "none (each tract counts once)"
  },
  "vote_floor": {
    "display": "100",
    "estimand": "a tract is kept when its estimated presidential votes exceed this number",
    "note": "",
    "period": "2020 presidential election; EJScreen 2.3 air data for 2020",
    "population": "census tracts",
    "source": "rlcr",
    "unit": "votes",
    "value": 100,
    "weights": "none (constant)"
  },
  "votes_m": {
    "display": "155.1 million",
    "estimand": "sum of tract presidential votes in the sample",
    "note": "",
    "period": "2020 presidential election; EJScreen 2.3 air data for 2020",
    "population": "census tracts with more than 100 votes in 2020 and complete pollution, control and land-area data",
    "source": "rlcr",
    "unit": "votes",
    "value": 155103000,
    "weights": "none (sum of votes)"
  },
  "white_d1": {
    "display": "79%",
    "estimand": "vote-weighted mean of the tract share of residents who are white alone",
    "n": 8114,
    "note": "",
    "period": "2020 votes; ACS tract shares",
    "population": "census tracts in decile 1 of diesel exposure",
    "source": "rlcr",
    "unit": "percent (share of residents who are white alone)",
    "value": 78.6041,
    "weights": "votes cast in the tract, 2020 presidential election (pres_tot)"
  },
  "white_d10": {
    "display": "36%",
    "estimand": "vote-weighted mean of the tract share of residents who are white alone",
    "n": 8114,
    "note": "",
    "period": "2020 votes; ACS tract shares",
    "population": "census tracts in decile 10 of diesel exposure",
    "source": "rlcr",
    "unit": "percent (share of residents who are white alone)",
    "value": 35.9877,
    "weights": "votes cast in the tract, 2020 presidential election (pres_tot)"
  }
}