Harriet M. Ammann

Affiliate Associate Professor, Env. and Occ. Health Sciences (Primary department)

After teaching for 14 years at the college and university level (cell, human, vertebrate and comparative physiology at NC Central and NC State Universities, and pharmacology, human anatomy and physiology, biochemistry and microbiology at Bowman Gray Scholl of Medicine (of Wake Forest University) I joined the U.S. EPA in Research Triangle Park NC as a health scientist. My work was in hazardous air pollutants, indoor air contaminants and in risk assessment for inhaled substances. After earning my diplomate with the American Board of Toxicology in 1989, I accepted a position as senior toxicologist with the Washington State Department of Health in 1990. While I dealt with environmental contamination in water, soil and fish, my primary interest was the public health effects from air pollution, both in the ambient and indoor air. In addition to my duties to the people of Washington, I served as vice-chair of the American Conference of Governmental Industrial Hygienist (ACGIH) Bioaerosols Committee, and was appointed to the National Academies of Science Institute of Medicine (IOM) Committee on Damp Indoor Spaces and Health. I contributed to the ACGIH book Bioaerosols, Assessment and Control as contributing author and assistant editor, and to the IOM book, Damp Indoor Spaces and Health, writing the chapter on toxicity from bacteria and molds, and contributing to the chapter on public health impacts and the chapter on building science. At DOH and later at the Air Quality Program of the Washington Department of Ecology, which I joined in 2002, I wrote responses on behalf of the State (signed by the State Health Officer, and the Program Director, respectively) to EPA proposals for changes to the Clean Air Standards for Fine Particles an Ozone. Since retiring from Sate service in 2006, I have continued to pursue my interest in indoor and ambient air pollution as a private consultant.

Research Interests

  • Inhalation Toxicology, general toxicology, public health impacts of ambient and indoor air pollutants.

Teaching interests

Indoor Air Pollution, especially bioaerosols; microbial toxins of bacteria and molds; health impacts of indoor and ambient air pollutants, etiology of asthma.


PhD, Zoology, North Carolina State University,


Developing healthy building courses for local universities and local health districts, and for EPA sponsored efforts on indoor air; policy options and risk communication for ambient and indoor air pollutants.

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