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T1  - Effects of forests on particle number concentrations in near-road environments across three geographic regions 
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UR  - http://hdl.handle.net/10138/318580 
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A1  - Viippola, Viljami; Yli-Pelkonen, Vesa; Järvi, Leena; Kulmala, Markku; Setälä, Heikki 
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Y1  - 2020 
LA  - eng 
AB  - Trees and other vegetation have been advocated as a mitigation measure for urban air pollution mainly due to the fact that they passively filter particles from the air. However, mounting evidence suggests that vegetation may also worsen air quality by slowing the dispersion of pollutants and by producing volatile organic compounds that contribute to formation of ozone and other secondary pollutants. We monitored nanoparticle (>10 nm) counts along distance gradients away from major roads along pa... 
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KW  - 1172 Environmental sciences; Air pollution; Particles; Nanoparticles; Urban forest; Parks; near-road environment; Forests; Ecosystem services; Urban ecology; Urban ecosystems; URBAN ATMOSPHERE; Urban meteorology; particle concentrations; Air quality; traffic; Urban trees; Field study; Air pollution; Particulate Matter; Particles; Nanoparticles; particle concentrations; Urban forest; Forests; Urban trees; Parks; Urban ecology; Urban ecosystems; URBAN ATMOSPHERE; Urban meteorology; near-road environment; Road traffic; Air pollution mitigation; Ecosystem services; Air quality; Urban vegetation; particle pollution; Nanoparticles; Air pollution; Air quality; Urban forest; Urban trees; AIR-POLLUTION; GREEN INFRASTRUCTURE; ECOSYSTEM SERVICES; URBAN VEGETATION; QUALITY; NANOPARTICLES; DEPOSITION; IMPACT; DISPERSION; HELSINKI 
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