Articles | Volume 18, issue 16
Atmos. Chem. Phys., 18, 12185–12206, 2018
https://doi.org/10.5194/acp-18-12185-2018

Special issue: Observations and Modeling of the Green Ocean Amazon (GoAmazon2014/5)...

Atmos. Chem. Phys., 18, 12185–12206, 2018
https://doi.org/10.5194/acp-18-12185-2018

Research article 23 Aug 2018

Research article | 23 Aug 2018

Urban influence on the concentration and composition of submicron particulate matter in central Amazonia

Suzane S. de Sá et al.

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Short summary
This study aimed at understanding and quantifying the changes in mass concentration and composition of submicron airborne particulate matter (PM) in Amazonia due to urban pollution. Downwind of Manaus, PM concentrations increased by up to 200 % under polluted compared with background conditions. The observed changes included contributions from both primary and secondary processes. The differences in organic PM composition suggested a shift in the pathways of secondary production with pollution.
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