{
  "alt": "Four lines show the mean national pollution percentile of tracts in each deprivation decile. All four fall from the least deprived decile on the left to the ninth decile and rise slightly in the tenth. Traffic proximity starts highest and falls furthest, and the NO₂ and PM₂.₅ lines fall less.",
  "caption": "Every line falls from the least deprived decile on the left to the ninth decile and edges up in the tenth, and the traffic and diesel lines fall furthest. A line plots the population-weighted mean national percentile of the tracts in each decile, tracts tied on the ADI rank share a decile, and the bands are 95% intervals from a bootstrap over counties. Across the tracts with both values the correlation with the ADI rank is {fact:ptraf_adi} for traffic, {fact:dslpm_adi} for diesel PM, {fact:no2_adi} for NO₂ and {fact:pm25_adi} for PM₂.₅.",
  "data": [
    {
      "conf_high": 79.18,
      "conf_low": 68.05,
      "decile": 1,
      "estimate": 74.7,
      "hazard": "Traffic proximity",
      "n_units": 8149
    },
    {
      "conf_high": 71.29,
      "conf_low": 58.96,
      "decile": 2,
      "estimate": 65.23,
      "hazard": "Traffic proximity",
      "n_units": 8293
    },
    {
      "conf_high": 60.23,
      "conf_low": 53.49,
      "decile": 3,
      "estimate": 56.92,
      "hazard": "Traffic proximity",
      "n_units": 8205
    },
    {
      "conf_high": 53.77,
      "conf_low": 48.87,
      "decile": 4,
      "estimate": 51.45,
      "hazard": "Traffic proximity",
      "n_units": 8184
    },
    {
      "conf_high": 50.34,
      "conf_low": 44.93,
      "decile": 5,
      "estimate": 47.72,
      "hazard": "Traffic proximity",
      "n_units": 8416
    },
    {
      "conf_high": 47.13,
      "conf_low": 41.66,
      "decile": 6,
      "estimate": 44.43,
      "hazard": "Traffic proximity",
      "n_units": 8052
    },
    {
      "conf_high": 44.32,
      "conf_low": 38.17,
      "decile": 7,
      "estimate": 41.19,
      "hazard": "Traffic proximity",
      "n_units": 8161
    },
    {
      "conf_high": 40.55,
      "conf_low": 35.39,
      "decile": 8,
      "estimate": 38.01,
      "hazard": "Traffic proximity",
      "n_units": 8288
    },
    {
      "conf_high": 37.53,
      "conf_low": 32.2,
      "decile": 9,
      "estimate": 34.92,
      "hazard": "Traffic proximity",
      "n_units": 8247
    },
    {
      "conf_high": 42.13,
      "conf_low": 35.42,
      "decile": 10,
      "estimate": 38.99,
      "hazard": "Traffic proximity",
      "n_units": 8203
    },
    {
      "conf_high": 75.36,
      "conf_low": 62.13,
      "decile": 1,
      "estimate": 69.69,
      "hazard": "Diesel PM",
      "n_units": 8149
    },
    {
      "conf_high": 71.11,
      "conf_low": 59.7,
      "decile": 2,
      "estimate": 65.61,
      "hazard": "Diesel PM",
      "n_units": 8293
    },
    {
      "conf_high": 61.41,
      "conf_low": 54.39,
      "decile": 3,
      "estimate": 58.14,
      "hazard": "Diesel PM",
      "n_units": 8205
    },
    {
      "conf_high": 56.45,
      "conf_low": 50.53,
      "decile": 4,
      "estimate": 53.64,
      "hazard": "Diesel PM",
      "n_units": 8184
    },
    {
      "conf_high": 52.62,
      "conf_low": 46.7,
      "decile": 5,
      "estimate": 49.71,
      "hazard": "Diesel PM",
      "n_units": 8416
    },
    {
      "conf_high": 49.53,
      "conf_low": 43.5,
      "decile": 6,
      "estimate": 46.55,
      "hazard": "Diesel PM",
      "n_units": 8052
    },
    {
      "conf_high": 46.27,
      "conf_low": 39.94,
      "decile": 7,
      "estimate": 43.07,
      "hazard": "Diesel PM",
      "n_units": 8161
    },
    {
      "conf_high": 42.12,
      "conf_low": 36.95,
      "decile": 8,
      "estimate": 39.46,
      "hazard": "Diesel PM",
      "n_units": 8288
    },
    {
      "conf_high": 38.91,
      "conf_low": 33.8,
      "decile": 9,
      "estimate": 36.35,
      "hazard": "Diesel PM",
      "n_units": 8247
    },
    {
      "conf_high": 42,
      "conf_low": 35.94,
      "decile": 10,
      "estimate": 39.13,
      "hazard": "Diesel PM",
      "n_units": 8203
    },
    {
      "conf_high": 67.58,
      "conf_low": 54.21,
      "decile": 1,
      "estimate": 61.37,
      "hazard": "NO₂",
      "n_units": 8146
    },
    {
      "conf_high": 63.92,
      "conf_low": 51.85,
      "decile": 2,
      "estimate": 58.08,
      "hazard": "NO₂",
      "n_units": 8292
    },
    {
      "conf_high": 56.05,
      "conf_low": 48.39,
      "decile": 3,
      "estimate": 52.3,
      "hazard": "NO₂",
      "n_units": 8204
    },
    {
      "conf_high": 53.46,
      "conf_low": 47.2,
      "decile": 4,
      "estimate": 50.45,
      "hazard": "NO₂",
      "n_units": 8184
    },
    {
      "conf_high": 51.82,
      "conf_low": 45.39,
      "decile": 5,
      "estimate": 48.71,
      "hazard": "NO₂",
      "n_units": 8416
    },
    {
      "conf_high": 50.96,
      "conf_low": 44.17,
      "decile": 6,
      "estimate": 47.59,
      "hazard": "NO₂",
      "n_units": 8052
    },
    {
      "conf_high": 49.47,
      "conf_low": 42.09,
      "decile": 7,
      "estimate": 45.71,
      "hazard": "NO₂",
      "n_units": 8161
    },
    {
      "conf_high": 46.95,
      "conf_low": 40.92,
      "decile": 8,
      "estimate": 43.89,
      "hazard": "NO₂",
      "n_units": 8288
    },
    {
      "conf_high": 45.25,
      "conf_low": 39.68,
      "decile": 9,
      "estimate": 42.52,
      "hazard": "NO₂",
      "n_units": 8247
    },
    {
      "conf_high": 50.71,
      "conf_low": 44.27,
      "decile": 10,
      "estimate": 47.64,
      "hazard": "NO₂",
      "n_units": 8203
    },
    {
      "conf_high": 73.24,
      "conf_low": 52.34,
      "decile": 1,
      "estimate": 64.27,
      "hazard": "PM₂.₅",
      "n_units": 8149
    },
    {
      "conf_high": 65.84,
      "conf_low": 47.61,
      "decile": 2,
      "estimate": 56.82,
      "hazard": "PM₂.₅",
      "n_units": 8293
    },
    {
      "conf_high": 56.99,
      "conf_low": 47.69,
      "decile": 3,
      "estimate": 52.29,
      "hazard": "PM₂.₅",
      "n_units": 8205
    },
    {
      "conf_high": 54.11,
      "conf_low": 47.2,
      "decile": 4,
      "estimate": 50.75,
      "hazard": "PM₂.₅",
      "n_units": 8184
    },
    {
      "conf_high": 51.99,
      "conf_low": 46.09,
      "decile": 5,
      "estimate": 49.21,
      "hazard": "PM₂.₅",
      "n_units": 8416
    },
    {
      "conf_high": 51.28,
      "conf_low": 44.87,
      "decile": 6,
      "estimate": 48.16,
      "hazard": "PM₂.₅",
      "n_units": 8052
    },
    {
      "conf_high": 50.7,
      "conf_low": 44.2,
      "decile": 7,
      "estimate": 47.4,
      "hazard": "PM₂.₅",
      "n_units": 8161
    },
    {
      "conf_high": 47.38,
      "conf_low": 41.64,
      "decile": 8,
      "estimate": 44.47,
      "hazard": "PM₂.₅",
      "n_units": 8288
    },
    {
      "conf_high": 46.62,
      "conf_low": 41.5,
      "decile": 9,
      "estimate": 44.06,
      "hazard": "PM₂.₅",
      "n_units": 8247
    },
    {
      "conf_high": 50.97,
      "conf_low": 44.29,
      "decile": 10,
      "estimate": 47.76,
      "hazard": "PM₂.₅",
      "n_units": 8203
    }
  ],
  "id": "air_vs_deprivation",
  "notes": [
    "National percentiles rank modeled values, so a gap in percentiles is not a gap in concentrations: the mean PM₂.₅ concentration is {fact:pm25_ug_d1} micrograms per cubic meter in the least deprived decile and {fact:pm25_ug_d10} in the most deprived.",
    "Each point rests on the tracts of a decile that have a value for the indicator, and the tooltip gives the count. The {fact:n_no_pm25} tracts with residents in Alaska, Hawaii and Puerto Rico have no PM₂.₅ or ozone estimate and are outside the analysis, and {fact:n_adi_missing} tracts in it have no ADI rank.",
    "The Area Deprivation Index descends from an index that includes median home value and median gross rent, so it rates dense, high-cost metropolitan tracts as less deprived than their incomes suggest."
  ],
  "source": "EPA EJScreen 2024, Area Deprivation Index 2023 and ACS 2019-2023; population-weighted means, modeled estimates",
  "spec": {
    "colors": {
      "Diesel PM": "cat2",
      "NO₂": "cat3",
      "PM₂.₅": "cat4",
      "Traffic proximity": "cat1"
    },
    "hi": "conf_high",
    "lo": "conf_low",
    "n": "n_units",
    "series": "hazard",
    "x": "decile",
    "xDomain": [
      1,
      10
    ],
    "xLabel": "Decile of the Area Deprivation Index national rank (1 = least deprived, 10 = most deprived)",
    "xTicks": "data",
    "y": "estimate",
    "yDomain": [
      20,
      90
    ],
    "yFormat": {
      "digits": 0
    },
    "yLabel": "Mean national percentile of the tract (0 to 100)"
  },
  "subtitle": "Mean national percentile of four EJScreen air indicators by decile of the Area Deprivation Index national rank, population-weighted, census tracts",
  "title": "Traffic pollution ranks at a mean national percentile of {fact:ptraf_adi_d1} in the least deprived tenth of tracts and {fact:ptraf_adi_d10} in the most deprived",
  "type": "line"
}