In January 2000, the Agricultural Research Service (ARS) met with stakeholders in Sacramento, California, to explore air quality problems associated with agriculture (USDA, 2002). This meeting was the first step in developing a list of high-priority research needs and a research program to address those needs. The Agricultural Air Quality Task Force had previously provided the Secretary of Agriculture with a list of research needs. EPA has been actively seeking ARS research in several agricultural air quality topic areas. ARS research in agricultural air quality is organized into five categories:
ammonia and ammonium emissions,
ozone impacts, and
pesticides and other synthetic organic chemicals.