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Hemispheric Transport of Air Pollution 2010

Part A - Ozone and Particulate Matter

image of Hemispheric Transport of Air Pollution 2010
This is one part of a four-volume set that presents a state-of-the-science assessment of the intercontinental transport of air pollutants across the Northern Hemisphere. The first three volumes are technical assessments of the state-of-science with respect to intercontinental transport of ozone and particulate matter, mercury, and persistent organic pollutants. The fourth volume is a synthesis of the main findings and recommendations of Parts A, B, and C organized around a series of policy-relevant questions that were identified at the Task Force on Hemispheric Transport of Air Pollution’s first meeting.

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Impacts on health, ecosystems, and climate

Given the LRT of ozone (O3) and particulate matter (PM) discussed in previous chapters, this chapter reviews the literature on the impacts of that LRT on human health, ecosystems, and climate. Concerns over human health and ecosystems have been the major drivers for air pollution regulations. In addition, O3 and PM are important for climate, so actions to reduce emissions relevant for O3 and PM will also influence climate. Other impacts of the LRT of O3 and PM that are not addressed in this chapter include the degradation of visibility (mainly due to PM) and damage to materials [U.S. EPA, 2006; 2009b].

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