{
  "alt": "Table with ten rows, one per decile of diesel exposure, and columns for the diesel median, the Democratic margin, racial and ethnic shares, college share, household income, deprivation rank and density. Density and the Democratic margin rise and the white share falls in every row from the first to the tenth. The Hispanic share is {fact:hispanic_d10} in the tenth row against {fact:hispanic_d1} in the first. Income is {fact:income_d1} in the first decile, {fact:income_peak} in decile {fact:income_peak_decile} and {fact:income_d10} in the tenth, and the college share is {fact:college_at_peak} in decile {fact:income_peak_decile} and {fact:college_d10} in the tenth. The mean deprivation rank falls from {fact:adi_d1} in the first row to {fact:adi_d10} in the tenth.",
  "caption": "Density and the Democratic margin rise and the white share falls from each decile to the next, while income peaks in decile {fact:income_peak_decile} and the college share changes little after it. Each row is a decile of tracts by diesel exposure; shares, income and deprivation rank are vote-weighted means of tract values, and density and exposure are medians.",
  "data": [
    {
      "adi": 62.5259,
      "black": 5.34706,
      "college": 25.4987,
      "decile_label": "1 (least)",
      "density_median": 13.9539,
      "diesel_median": 0.0416557,
      "hispanic": 9.38561,
      "income": 69.7544,
      "margin": -29.8245,
      "n": 8114,
      "white": 78.6041
    },
    {
      "adi": 59.1234,
      "black": 7.10162,
      "college": 27.577,
      "decile_label": "2",
      "density_median": 44.1911,
      "diesel_median": 0.0680021,
      "hispanic": 8.88818,
      "income": 78.1423,
      "margin": -28.7751,
      "n": 8113,
      "white": 78.4566
    },
    {
      "adi": 52.1937,
      "black": 7.02867,
      "college": 32.1229,
      "decile_label": "3",
      "density_median": 152.306,
      "diesel_median": 0.092188,
      "hispanic": 10.0484,
      "income": 87.4599,
      "margin": -21.784,
      "n": 8113,
      "white": 76.5951
    },
    {
      "adi": 47.1049,
      "black": 8.37738,
      "college": 36.496,
      "decile_label": "4",
      "density_median": 426.811,
      "diesel_median": 0.118008,
      "hispanic": 11.0796,
      "income": 94.7483,
      "margin": -10.3629,
      "n": 8114,
      "white": 72.3778
    },
    {
      "adi": 45.0324,
      "black": 10.7178,
      "college": 39.5566,
      "decile_label": "5",
      "density_median": 821.199,
      "diesel_median": 0.143817,
      "hispanic": 12.8768,
      "income": 98.4974,
      "margin": 1.42353,
      "n": 8113,
      "white": 66.6521
    },
    {
      "adi": 42.6581,
      "black": 12.7547,
      "college": 41.4908,
      "decile_label": "6",
      "density_median": 1079.67,
      "diesel_median": 0.171017,
      "hispanic": 14.5595,
      "income": 102.082,
      "margin": 9.30238,
      "n": 8113,
      "white": 61.8232
    },
    {
      "adi": 41.4033,
      "black": 13.5083,
      "college": 41.9275,
      "decile_label": "7",
      "density_median": 1394.11,
      "diesel_median": 0.203176,
      "hispanic": 17.1634,
      "income": 100.622,
      "margin": 18.3632,
      "n": 8114,
      "white": 56.6648
    },
    {
      "adi": 39.3801,
      "black": 15.1787,
      "college": 42.3966,
      "decile_label": "8",
      "density_median": 1669.14,
      "diesel_median": 0.244072,
      "hispanic": 18.686,
      "income": 99.8479,
      "margin": 26.3431,
      "n": 8113,
      "white": 52.9343
    },
    {
      "adi": 34.4444,
      "black": 14.4595,
      "college": 42.2012,
      "decile_label": "9",
      "density_median": 2354.39,
      "diesel_median": 0.311086,
      "hispanic": 24.5115,
      "income": 97.5637,
      "margin": 34.1776,
      "n": 8113,
      "white": 47.1217
    },
    {
      "adi": 22.2123,
      "black": 12.747,
      "college": 42.0741,
      "decile_label": "10 (most)",
      "density_median": 5167.4,
      "diesel_median": 0.476636,
      "hispanic": 33.4322,
      "income": 96.6196,
      "margin": 49.1188,
      "n": 8114,
      "white": 35.9877
    }
  ],
  "id": "tract_profile",
  "notes": [
    "Deciles of diesel exposure hold equal numbers of tracts; ties are broken by census tract code.",
    "Shares, incomes and ranks are means of tract values weighted by votes. They describe the tracts in each decile, so the table shows no interval.",
    "The atlas labels the white share as white alone. Together the white, Black and Hispanic shares never exceed a tract's whole population, so the white share appears to leave out Hispanic residents, but the atlas file does not say so.",
    "The Area Deprivation Index has no rank for a small number of tracts, which are left out of that column."
  ],
  "source": "Precinct votes allocated to census tracts (Fekrazad 2025), 2020 presidential election; EPA EJScreen version 2.3 (2024 release, 2020 air data); American Community Survey tract data (vintage not recorded in the atlas); vote-weighted, full counts of tracts, no sampling weights; Area Deprivation Index national rank (Neighborhood Atlas; release year not recorded in the atlas file)",
  "spec": {
    "columns": [
      {
        "key": "decile_label",
        "label": "Decile of diesel exposure"
      },
      {
        "format": {
          "digits": 2
        },
        "key": "diesel_median",
        "label": "Diesel PM, median (µg/m³)"
      },
      {
        "format": {
          "digits": 1,
          "signed": true
        },
        "key": "margin",
        "label": "Democratic margin (points)"
      },
      {
        "format": {
          "digits": 0
        },
        "key": "white",
        "label": "White alone (%)"
      },
      {
        "format": {
          "digits": 0
        },
        "key": "black",
        "label": "Black alone (%)"
      },
      {
        "format": {
          "digits": 0
        },
        "key": "hispanic",
        "label": "Hispanic (%)"
      },
      {
        "format": {
          "digits": 0
        },
        "key": "college",
        "label": "College degree (%)"
      },
      {
        "format": {
          "digits": 0,
          "prefix": "$",
          "suffix": "k"
        },
        "key": "income",
        "label": "Median household income"
      },
      {
        "format": {
          "digits": 1
        },
        "key": "adi",
        "label": "Deprivation rank (100 = most)"
      },
      {
        "format": {
          "digits": 0,
          "thousands": true
        },
        "key": "density_median",
        "label": "People per km², median"
      }
    ]
  },
  "subtitle": "Characteristics of the tracts in each decile of diesel particulate exposure ({fact:n_per_decile} tracts per decile): shares of residents (percent), income (dollars) and deprivation rank averaged by votes, density and exposure as medians",
  "title": "Higher-diesel tracts are denser, less white and more Hispanic, and income peaks at decile {fact:income_peak_decile} while college share stays nearly flat after it",
  "type": "table",
  "width": "wide"
}