This indicator reports the count of LUSTs (multiplied by a factor of 7.7) and the number of USTs within a 1,500-foot buffered block group. Areas with higher UST scores are placed higher in percentile (national ranking). The percentile could be interpreted as, for example, for a place at the 80th percentile nationwide, 20% (i.e., 100…
This indicator reports the count of RMP (potential chemical accident management plan) facilities within 10 km, each divided by distance in km. Areas with higher RMP Facility proximity scores are placed higher in percentile (national ranking). The percentile could be interpreted as, for example, for a place at the 80th percentile nationwide, 20% (i.e., 100…
This indicator reports the count of vehicles per day (average annual daily traffic) at major roads within 10 kilometers (km), divided by distance in km. Although proximity to roads can provide access to amenities, in EJScreen, the indicator is designed to screen for the negative aspects of very close proximity to very high volumes of…
This indicator reports the count of proposed and listed NPL sites (deleted sites excluded) within 10 km, each divided by distance in km. Areas with higher Superfund proximity scores are placed higher in percentile (national ranking). The percentile could be interpreted as, for example, for a place at the 80th percentile nationwide, 20% (i.e., 100…
This indicator reports the count of hazardous waste management facilities (TSDFs and LQGs) within 10 km, each divided by distance in km. Areas with higher RMP Facility proximity scores are placed higher in percentile (national ranking). The percentile could be interpreted as, for example, for a place at the 80th percentile nationwide, 20% (i.e., 100…
This indicator reports the RSEI modeled Toxic Concentrations at stream segments within 500 meters, divided by distance in kilometers (km). It quantifies a block group’s relative risk of exposure to pollutants in downstream water bodies. Areas with higher wastewater discharge values are placed higher in percentile (national ranking). The percentile could be interpreted as, for…
This indicator reports the respiratory Hazard Index (HI) from the analyzed carcinogens in ambient outdoor air. The HI is the sum of hazard indices for those air toxics with reference concentrations based on respiratory endpoints, where each hazard index is the ratio of exposure concentration in the air to the health-based reference concentration set by…
This indicator reports the estimated concentration of diesel PM in air. The value of the indicator is in µg /m3. Areas with higher diesel PM levels (i.e., more harmful to human health) are placed higher in percentile (national ranking). The percentile could be interpreted as, for example, for a place at the 80th percentile nationwide,…
This indicator reports the estimated lifetime inhalation cancer risk from the analyzed carcinogens in ambient outdoor air. The value of the indicator is persons per million lifetime. Areas with higher air toxics cancer risk levels (i.e., more harmful to human health) are placed higher in percentile (national ranking). The percentile could be interpreted as, for…