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    Author(s): David J. Nowak; Satoshi Hirabayashi; Allison Bodine; Robert Hoehn
    Date: 2013
    Source: Environmental Pollution. 178: 395-402.
    Publication Series: Scientific Journal (JRNL)
    Station: Northern Research Station
    PDF: View PDF  (250.44 KB)

    Description

    Urban particulate air pollution is a serious health issue. Trees within cities can remove fine particles from the atmosphere and consequently improve air quality and human health. Tree effects on PM2.5 concentrations and human health are modeled for 10 U.S. cities. The total amount of PM2.5 removed annually by trees varied from 4.7 tonnes in Syracuse to 64.5 tonnes in Atlanta, with annual values varying from $1.1 million in Syracuse to $60.1 million in New York City. Most of these values were from the effects of reducing human mortality. Mortality reductions were typically around 1 person yr-1 per city, but were as high as 7.6 people yr-1 in New York City. Average annual percent air quality improvement ranged be- tween 0.05% in San Francisco and 0.24% in Atlanta. Understanding the impact of urban trees on air quality can lead to improved urban forest management strategies to sustain human health in cities.

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    Citation

    Nowak, David J.; Hirabayashi, Satoshi; Bodine, Allison; Hoehn, Robert. 2013. Modeled PM2.5 removal by trees in ten US cities and associated health effects. Environmental Pollution. 178: 395-402.

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    Keywords

    Urban forests, Air pollution removal, Particulate matter, Mortality, Human health

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https://www.fs.usda.gov/treesearch/pubs/43676