Attribute names and descriptions are as follows:

• STATE - Census State Number

• COUNTY - Census County Number

• TRACT - Census Tract Number

• plltn_p - Clean Environment domain score (average of Z-scores of Diesel PM, Ozone, PM 2.5, Safe Drinking Water), statewide percentile ranking

• atmbl_p - Percentage of households with access to an automobile, statewide percentile ranking

• cmmt_pc - Percentage of workers, 16 years and older, who commute to work by transit, walking, or cycling, statewide percentile ranking

• emplyd_ - Percentage of population aged 20-64 who are employed, statewide percentile ranking

• abvpvr_ - Percent of the population with an income exceeding 200% of federal poverty level, statewide percentile ranking

• prkccs_ - Percentage of the population living within a half-mile of a park, beach, or open space greater than 1 acre, statewide percentile ranking

• trcnpy_ - Population-weighted percentage of the census tract area with tree canopy, statewide percentile ranking

• twprnt_ - Percentage of family households with children under 18 with two parents, statewide percentile ranking

• ozn_pct - Mean of summer months of the daily maximum 8-hour ozone concentration (ppm) averaged over three years (2012 to 2014), statewide percentile ranking

• pm25_pc - Annual mean concentration of PM2.5 (average of quarterly means, μg/m3), over three years (2012 to 2014), statewide percentile ranking

• dslpm_p - Spatial distribution of gridded diesel PM emissions from on-road and non-road sources for a 2012 summer day in July, statewide percentile ranking

• h20cnt_ - Cal EnviroScreen 3.0 drinking water contaminant index for selected contaminants, statewide percentile ranking

• wht_pct - Percent of Whites in the total population (not a percentile)

• heatdays - Projected annual number of extreme heat days at 2070, (not a percentile)

• impervsu_5 - Percent impervious surface cover, statewide percentile ranking

• transita_5 - Percent of population residing within ½ mile of a major transit stop, statewide percentile ranking

• uhii_pctil - Urban heat island index: sum of 182 day temp. differences (degree-hr) between urban and rural reference, statewide percentile ranking

• traffic_1 - Sum of traffic volumes adjusted by road segment length divided by total road length within 150 meters of the census tract boundary, statewide percentile ranking

• children_1 - Percent of population under 5 years of age, statewide percentile ranking

• elders_p_1 - Percent of population 65 years of age and older, statewide percentile ranking

• englishs_5 - Percentage of households where at least one person 14 years and older speaks English very well, statewide percentile ranking

• pedshurt_1 - 5-year (2006-2010) annual average rate of severe and fatal pedestrian injuries per 100,000 population, statewide percentile ranking

• leb_pctile - Life expectancy at birth in 2010, statewide percentile ranking

• abvpvty_s - Poverty, lowest 25th percentile statewide

• employ_s - Unemployed, lowest 25th percentile statewide

• twoprnt_s - Two Parent Households, lowest 25th percentile statewide

• chldrn_s - Young Children, lowest 25th percentile statewide

• elderly_s - Elderly, lowest 25th percentile statewide

• englishs_s - Non-English Speaking, lowest 25th percentile statewide

• majorwht_s - Majority Minority Population, over 50 percent of population non-white

• D1_Social - Social barriers to accessing outdoor opportunities, combined indicators score

• actvcom_s - Limited Active Commuting, lowest 25th percentile statewide

• autoacc_s - Limited Automobile Access, lowest 25th percentile statewide

• transita_s - Limited Public Transit Access, lowest 25th percentile statewide

• trafficd_s - Traffic Density, lowest 25th percentile statewide

• pedinjry_s - Pedestrian Injuries, lowest 25th percentile statewide

• D2_Transp - Transportation barriers to accessing outdoor opportunities, combined indicators score

• expbirth_s - Life Expectancy at Birth, lowest 25th percentile statewide

• clneviro_s - Pollution, lowest 25th percentile statewide

• D3_Health - Health Vulnerability, combined indicators score

• parkacc_s - Limited Park Access, lowest 25th percentile statewide

• treecan_s - Limited Tree Canopy, lowest 25th percentile statewide

• impsurf_s - Impervious Surface, lowest 25th percentile statewide

• exheat_s - Excessive Heat Days, highest of four quantiles

• hisland_s - Urban Heat Island Index, lowest 25th percentile statewide

• D4_Environ Environmental Vulnerability, combined indicators score

• D1_Multi Multiple indicators (2 or more) with social barriers to accessessing outdoor opportunities

• D2_Multi Multiple indicators (2 or more) with transportation barriers to accessessing outdoor opportunities

• D3_Multi Multiple indicators (1 or more) with health vulnerability

• D4_Multi Multiple indicators (2 or more) with environmental vulnerability

• Comp_DIM - Multiple Indicators, combined dimensions score

• D1_Major - Majority indicators (4 or more) with social barriers to accessessing outdoor opportunities

• D2_Major - Majority indicators (3 or more) with transportation barriers to accessessing outdoor opportunities

• D3_Major - Majority indicators (1 or more) with health vulnerability

• D4_Major - Majority indicators (3 or more) with environmental vulnerability

• Comp_DIM_2 - Majority Indicators, combined dimensions score

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