Contributions of mobile, stationary and biogenic sources to air pollution in the Amazon rainforest: a numerical study with the WRF-Chem model
This paper evaluates the contributions of the emissions from mobile, stationary and biogenic sources on air pollution in the Amazon rainforest by using the Weather Research and Forecasting with Chemistry (WRF-Chem) model. The analyzed air pollutants were CO, NO<sub><i>x</i></...
Main Authors: | , , , , , , , , , , , , |
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Format: | Article |
Language: | English |
Published: |
Copernicus Publications
2017-06-01
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Series: | Atmospheric Chemistry and Physics |
Online Access: | https://www.atmos-chem-phys.net/17/7977/2017/acp-17-7977-2017.pdf |
Summary: | This paper evaluates the contributions of the emissions
from mobile, stationary and biogenic sources on air pollution in the Amazon
rainforest by using the Weather Research and Forecasting with Chemistry
(WRF-Chem) model. The analyzed air pollutants were CO, NO<sub><i>x</i></sub>, SO<sub>2</sub>,
O<sub>3</sub>, PM<sub>2. 5</sub>, PM<sub>10</sub> and volatile organic
compounds (VOCs). Five scenarios were defined in
order to evaluate the emissions by biogenic, mobile and stationary sources,
as well as a future scenario to assess the potential air quality impact of
doubled anthropogenic emissions. The stationary sources explain the highest
concentrations for all air pollutants evaluated, except for CO, for which
the mobile sources are predominant. The anthropogenic sources considered
resulted an increasing in the spatial peak-temporal average concentrations
of pollutants in 3 to 2780 times in relation to those with only biogenic
sources. The future scenario showed an increase in the range of 3 to 62 %
in average concentrations and 45 to 109 % in peak concentrations depending
on the pollutant. In addition, the spatial distributions of the scenarios
has shown that the air pollution plume from the city of Manaus is
predominantly transported west and southwest, and it can reach hundreds of
kilometers in length. |
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ISSN: | 1680-7316 1680-7324 |