Science Inventory

Characterizing the Exposure of Regional-Scale Air Quality in the Northeastern United States

Citation:

GARCIA, V., J. L. CROOKS, E. Gego, S. Lin, AND S. T. RAO. Characterizing the Exposure of Regional-Scale Air Quality in the Northeastern United States. Chapter 116, Douw G. Steyn & Silvia Trini Castelli (ed.), NATO/ITM Air Pollution Modeling and its Application , XXI . Springer Netherlands, , Netherlands, Series C:711-715, (2011).

Impact/Purpose:

The National Exposure Research Laboratory′s (NERL) Human Exposure and Atmospheric Sciences Division (HEASD) conducts research in support of EPA′s mission to protect human health and the environment. HEASD′s research program supports Goal 1 (Clean Air) and Goal 4 (Healthy People) of EPA′s strategic plan. More specifically, our division conducts research to characterize the movement of pollutants from the source to contact with humans. Our multidisciplinary research program produces Methods, Measurements, and Models to identify relationships between and characterize processes that link source emissions, environmental concentrations, human exposures, and target-tissue dose. The impact of these tools is improved regulatory programs and policies for EPA.

Description:

The Clean Air Act (CAA) requires that the United States (U.S.) Environmental Protection Agency (EPA) set National Ambient Air Quality Standards (NAAQS) for pollutants considered harmful to human health and the environment. Previous research has shown that high ambient ozone levels are harmful to human health (e.g., Bell ML, Dominici F. Samet 1M, Epidemiology, 16(4):436-445, 2005; Ito K. De Leon SF, Lippmann M. Epidemiology, 16(4):446-457,2005. [4]). While ozone is not directly emitted, the formation of ozone is driven by chemical interactions in the presence of sunlight involving nitrogen oxides (NOx) and volatile organic compounds. Prevailing weather conditions in the Northeastern U.S. transport the relatively long-lived NOx (NO and NO2 and the secondarily-formed ozone downwind, contributing to pollutant levels at locations much farther from the emission source regions. In this study, we investigate associations between polluted air parcels transported from the Ohio River Valley (ORV) in the Midwestern U.S. and respiratory-related hospital admissions in New York State (NYS). We also examine whether better characterization of exposure in an epidemiology model would improve the discernment of this health signal.

URLs/Downloads:

NATO/ITM Air Pollution Modeling & Its Application XXI   (PDF,NA pp, 5 KB,  about PDF)

Record Details:

Record Type: DOCUMENT (BOOK CHAPTER)
Product Published Date: 10/08/2011
Record Last Revised: 01/31/2012
OMB Category: Other
Record ID: 231833

Organization:

U.S. ENVIRONMENTAL PROTECTION AGENCY

OFFICE OF RESEARCH AND DEVELOPMENT

NATIONAL EXPOSURE RESEARCH LABORATORY

ATMOSPHERIC MODELING AND ANALYSIS DIVISION

ATMOSPHERIC EXPOSURE INTEGRATION BRANCH