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Basic Information
Research Mission
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 are improved regulatory programs and policies for EPA.
Figure 1. Exposure Science in the Source to Effects Continuum
HEASD’s exposure science characterizes and links the boxes in the source-to- effects paradigm. HEASD’s core research activities include:
- Development sampling and analytical methods for measuring environmental concentrations of organic and inorganic pollutants
- Measurement studies to understand atmospheric processes and human exposures to environmental pollutants
- Development and application of models to link
- sources to atmospheric concentrations;
- environmental concentrations to human exposures;
- human exposures to dose; and,
- human exposures and environmental concentrations back to sources.
Organization
HEASD has six research branches, five located in Research Triangle Park, NC (RTP), and one in Las Vegas, NV. HEASD’s research branches are supported by a program operations staff (POS), who are located in RTP:
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