Dataset

Environmental Protection Agency (EPA) Air Toxics Data Ambient Monitoring Archive

Environmental Protection Agency (EPA) Air Toxics Data Ambient Monitoring Archive
Data Category
Ground-based monitoring
Spatial Extent
United States
Chemicals
HAPs
Provider
Environmental Protection Agency
Temporal Resolution
N/A
Update Frequency
Variable
Description

National monitoring data for air toxics measurements for most states, specifically Hazardous Air Pllutants (HAPs). Chemical concentrations/measurements pulled from ground-based monitoring.

Potential Uses
• Find measured levels of chemical in an area
Limitations
Due to the size of the 2021 Archive, the Microsoft Access data files are divided by state and year. Data are only available after-the-fact, e.g. 1.5 to 4 years after the measurements were taken.
Associated Tools or Datasets
N/A