The 130th Annual Meeting of APHA

Abstract #44655

Sonya Lunder¹, Tracey J. Woodruff, PhD, MPH², and Daniel A. Axelrad². (1) University of California, Berkeley, School of Public Health, Berkeley, CA 94720, (2) Office of Policy, Economics and Innovation, United States Environmental Protection Agency, 75 Hawthorne Street(SPE-1), San Francisco, CA 94105

The Clean Air Act (CAA), as amended in 1990, lists 188 substances as hazardous air pollutants (HAPs) subject to regulation. HAPs have been associated with a variety of health outcomes, including cancer, neurological, reproductive, developmental, respiratory, and cardiotoxic effects. The CAA includes procedures for making revisions to the list of HAPs. The U.S. Environmental Protection Agency (EPA) has been petitioned to remove several substances from the HAP list; however no additions to the list have been proposed since it was established in 1990. To identify substances that may be candidates for addition to the HAP list, available data were compiled for over 1000 chemicals subject to various regulatory and assessment programs of the US EPA, the state of California, and Environment Canada. Available emissions data and toxicology information were used as surrogates for ranking the potential risks of these substances. A set of approximately 40 priority candidate HAPs was identified, based on analysis of toxicity-weighted emissions and qualitative considerations of hazards including potential for persistence, bioaccumulation and developmental/reproductive toxicity. Further analysis should be conducted to estimate the potential risks and to evaluate the suitability of CAA authorities for these candidate HAPs.

The views expressed in this presentation are those of the authors, and do not necessarily represent those of the U.S. Environmental Protection Agency.

Learning Objectives:

• At the conclusion of the session, the participant will be able to identify several candidate hazardous air pollutants.

Keywords: Environmental Health Hazards, Air Pollutants

Presenting author's disclosure statement:
I do not have any significant financial interest/arrangement or affiliation with any organization/institution whose products or services are being discussed in this session.