Table 1.
Description of pollution indicators in CalEnviroScreen 2.0
| Indicators | Description | ||
|---|---|---|---|
| Pollution Burden | Average of percentiles from Exposure and Environmental Effects indicators, with a half weighting for the Environmental Effects indicators) | ||
| Pollution Burden | Exposures | Ozone | Amount of daily maximum 8-h Ozone concentration (ppm) |
| PM2.5 | Annual mean particulate matter < 2.5 μm concentrations (μg/m3) | ||
| Diesel PM | Diesel PM emissions from on-road and non-road sources (kg/day) | ||
| Pesticides | Total pounds of selected active pesticide ingredients (filtered for hazard and volatility) used in production-agriculture per square mile in the census tract | ||
| Toxic Release | Toxicity-weighted concentrations of modeled chemical releases to air from facility emissions and off-site incineration | ||
| Traffic | Traffic density, in vehicle-kilometers per hour per road length, within 150 m of the census tract boundary | ||
| Individual Drinking Water Contaminants of Violation Measures | Drinking Water Score | Drinking water contaminant index for selected contaminants | |
| Arsenic | Arsenic average (ppb) | ||
| Cadmium | Cadmium average (ppb) | ||
| DBCP | 1,2-Dibromo-3-chloropropane average (ppb) | ||
| Lead | Lead average (ppb) | ||
| Nitrate | Nitrate (as NO3) average (ppm) | ||
| Perchlorate | Perchlorate average (ppb) | ||
| TCE | Trichloroethylene average (ppb) | ||
| TCP | 1,2,3-trichloropropane average (ppb) | ||
| THM | Total trihalomethane average (ppb) | ||
| Uranium | Uranium average (PCI/L) | ||
| MCL Violations | The total number of Maximum Contaminant Level (MCL) violations for any chemical by system from 2008 to 2012 population weighted to the census tract | ||
| TCR Violations | Total coliform rule violations by system from 2008 to 2012 population weighted to the census tract | ||
| Environmental Effects | Groundwater Threats | Groundwater threats, sum of weighted GeoTracker leaking underground storage tank sites within buffered distances to populated blocks of census tracts | |
| Hazardous Waste | Sum of weighted hazardous waste facilities and large quantity generators within buffered distances to populated blocks of census tracts | ||
| Impaired Water Bodies | Impaired water bodies, sum of number of pollutants across all impaired water bodies within buffered distances to populated blocks of census tracts | ||
| Solid Waste | Sum of weighted solid waste sites and facilities within buffered distances to populated blocks of census tracts | ||
| Cleanup Sites | Cleanup sites, sum of weighted EnviroStor cleanup sites within buffered distances to populated blocks of census tracts | ||
| Socioeconomic Factors | Poverty | Percent of population living below two times the federal poverty level | |
| Unemployment | Percent of the population over the age of 16 that is unemployed and eligible for the labor force | ||
| Housing Burden | Percent housing burdened low income households | ||
| Linguistic Isolation | Percent limited English speaking households | ||