Emerging Issues in Air Quality: Pollutants, Sources, Concentrations, Chemistry, and Health Risks

Dear Colleagues,

In addition to the most intensively studied pollutants, such as particulate matter (PM), ozone, and nitrogen oxides, other contaminants are emerging in importance as threats to indoor and outdoor air quality. This is occurring because of evolving technologies, economic growth, and controls on the direct emissions of PM and emissions of precursors to secondary PM and ozone. These other pollutants are derived from items such as personal care and household cleaning products, coatings and packaging, air fresheners, refrigerants, and e-cigarettes. Pollutants derived from consumer products are also precursors to the formation of PM and ozone. Are there approaches for evaluating human exposures to pollutants derived from consumer products, their reaction products, and the risks they pose to human health?

Emphasis on assigning health outcomes to PM exposure focuses mainly on mass instead of specific PM components. Is there new evidence relating health outcomes to specific PM components?

Nitrogen and sulfur oxides react with naturally occurring molecules in the atmosphere. Is there new evidence linking the species formed from this interaction to health outcomes?

Existing ambient air monitoring networks are limited in their capability to measure exposure to air pollutants. Are there advances in measurement techniques based on remote sensing and/or in-situ sensors that will substantively improve the spatial and temporal coverage for monitoring pollutants?

What human or animal evidence is there relating health outcomes to emerging contaminants?

Dr. Joseph Pinto
Dr. Janice S. Lee
Guest Editors

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