By Pat Rizzuto, Bloomberg BNA.
The Environmental Protection Agency is developing an approach to understand the health risks posed by mixtures of different air pollutants.
Barbara Buckley, a toxicologist working in the EPA's National Center for Environmental Assessment, described during a July 12 webinar a conceptual approach the agency is developing to assess mixtures of air pollutants.
Buckley said the Adverse Outcome Pathway approach the EPA is exploring is at the research stage; information would be used to identify additional studies that could address critical data gaps. The approach, however, marks an important shift in the agency from a single-pollutant at a time approach to assessing multiple pollutants in the air people breathe, she said.