Fresh Air

The National-Scale Air Toxics Assessment (NATA) has reports from the U.S. Environmental Protection Agency's "ongoing comprehensive evaluation of air toxics in the U.S." These reports contain the results of an assessment of 1999 air toxics emissions (released in 2006), and an earlier report on 1996 toxic air pollutants. The 1999 assessment includes a summary of the findings, a FAQ on air toxics, a list of the over 170 air pollutants in the report, a glossary, data tables, maps, and tools to analyze the data.