Days Exceeding NAAQ Standards for Ozone
This layer displays the percentage of days (in a single year) with the maximum 8-hour average ozone concetration above the National Ambient Air Quality Standard (NAAQS) of 0.070 parts per million.
Days Exceeding NAAQ Standards for Fine Particulate Matter
This layer displays the percentage of days (in a single year) with the concetration of fine particulate matter (fine particles 2.5 micrometers or less) above the National Ambient Air Quality Standard (NAAQS) of 35.0 micrograms per cubic meter.
New maps and data now available for radon testing from the North Carolina Department of Health and Human Services
This indicator reports the radon testing prevalence, i.e., the proportion of residential buildings tested for radon, as well as the mean, median, and maximum pre-mitigation radon levels of tested buildings over the latest three-year period (2022-2024). Data are collected from … Continued
Air Toxics – Cancer Risk by Census Tract
Layer displays the modeled cancer risk associated with air toxics exposure. Figures represents the likelihood of hazardous exposure per 1 million population.
Air Toxics – Non-Cancer Risk by Census Tract
Layer displays the modeled non-cancer risk associated with air toxics exposure. A hazard index (HI) of 1 or lower means air toxics are unlikely to cause adverse noncancer health effects over a lifetime of exposure.