Human Exposure and Atmospheric Sciences

The Human Exposure & Atmospheric Sciences Division (HEASD) conducts research in support of EPA’s mission to protect human health and the environment. HEASD’s integrated, multi-disciplinary research programs produce high-quality methods, measurements, and models needed to enable a sound scientific understanding of the processes and factors that impact relationships between sources of environmental pollutants, environmental concentrations, and human exposure

HEASD Research Programs:

Photograph of a PMc sampler evaluation platform at the Riverside, CA site during July 2003. Similar tests were conducted in Gary, IN (March 2003) and Phoenix, AZ (May 2003 and Jan. 2004).

Example of a metal coarse particle Concentrated Ambient Particles (CAP). The research is working to determine if a particular source can be linked to a health effect.

	Identifying Air Pollution Sources of Greatest Risk HEASD is developing and applying source apportionment and exposure assessment tools to identify the air pollution sources contributing to the most significant human health risks.
	Understanding Risks to Susceptible Subpopulations HEASD’s research program is seeking to identify and understand the factors that influence children’s exposures and exposures to elderly Americans.
	Aggregate and Cumulative Risk The goal of this HEASD research program is to improve our understanding of aggregate exposures (exposure to a single pollutant via multiple pathways) and cumulative exposures (aggregate exposure from multiple pollutants).
	Regulatory Support Applications HEASD is conducting research in support of EPA regulations and policies.

Current Research Tasks

Research projects in the process of collecting data.

Completed Research

Research projects that have completed testing and data analysis.

Available Products/Tools

The products (e.g., models, databases) that were created from research projects.

HEASD Publications

Citations for 1999 - present

Citations with abstracts: 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007

Human Exposure and Atmospheric Sciences

Research & Development | National Exposure Research Laboratory

HEASD Research Programs:

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