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An Overview of Ultrafine Particles in Ambient Air
Citation:
SOLOMON, P. A. An Overview of Ultrafine Particles in Ambient Air. EM: AIR AND WASTE MANAGEMENT ASSOCIATION'S MAGAZINE FOR ENVIRONMENTAL MANAGERS. Air & Waste Management Association, Pittsburgh, PA, 5(May, 2012):18-27, (2012).
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:
Solid and liquid particles found in the atmospheric aerosol typically cover 4 to 5 orders of magnitude from nanometers (nm) up to 100 micrometers (µm). The size range of particles of most interest to human health effects are inhalable and typically fall below 10 µm1,2. This article focuses on ultrafine particles (i.e., particles less than 0.1 µm or 100 nm).
URLs/Downloads:
An Overview of Ultrafine Particles in Ambient Air (PDF, NA pp, 4871 KB, about PDF)EM Magazine
