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  Urban pollution greatly enhances formation of natural aerosols over the Amazon rainforest

Shrivastava, M., Andreae, M. O., Artaxo, P., Barbosa, H. M. J., Berg, L. K., Brito, J., et al. (2019). Urban pollution greatly enhances formation of natural aerosols over the Amazon rainforest. Communications Physics, 10: 1046. doi:10.1038/s41467-019-08909-4.

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Shrivastava, Manish1, Author
Andreae, Meinrat O.2, Author           
Artaxo, Paulo1, Author
Barbosa, Henrique M. J.1, Author
Berg, Larry K.1, Author
Brito, Joel1, Author
Ching, Joseph1, Author
Easter, Richard C.1, Author
Fan, Jiwen1, Author
Fast, Jerome D.1, Author
Feng, Zhe1, Author
Fuentes, Jose D.1, Author
Glasius, Marianne1, Author
Goldstein, Allen H.1, Author
Alves, Eliane Gomes1, Author
Gomes, Helber1, Author
Gu, Dasa1, Author
Guenther, Alex1, Author
Jathar, Shantanu H.1, Author
Kim, Saewung1, Author
Liu, Ying1, AuthorLou, Sijia1, AuthorMartin, Scot T.1, AuthorMcNeill, V. Faye1, AuthorMedeiros, Adan1, Authorde Sa, Suzane S.1, AuthorShilling, John E.1, AuthorSpringston, Stephen R.1, AuthorSouza, R. A. F.1, AuthorThornton, Joel A.1, AuthorIsaacman-VanWertz, Gabriel1, AuthorYee, Lindsay D.1, AuthorYnoue, Rita1, AuthorZaveri, Rahul A.1, AuthorZelenyuk, Alla1, AuthorZhao, Chun1, Author more..
Affiliations:
1external, ou_persistent22              
2Multiphase Chemistry, Max Planck Institute for Chemistry, Max Planck Society, ou_1826290              

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 Abstract: One of the least understood aspects in atmospheric chemistry is how urban emissions influence the formation of natural organic aerosols, which affect Earth’s energy budget. The Amazon rainforest, during its wet season, is one of the few remaining places on Earth where atmospheric chemistry transitions between preindustrial and urban-influenced conditions. Here, we integrate insights from several laboratory measurements and simulate the formation of secondary organic aerosols (SOA) in the Amazon using a high-resolution chemical transport model. Simulations show that emissions of nitrogen-oxides from Manaus, a city of ~2 million people, greatly enhance production of biogenic SOA by 60–200% on average with peak enhancements of 400%, through the increased oxidation of gas-phase organic carbon emitted by the forests. Simulated enhancements agree with aircraft measurements, and are much larger than those reported over other locations. The implication is that increasing anthropogenic emissions in the future might substantially enhance biogenic SOA in pristine locations like the Amazon.

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Language(s): eng - English
 Dates: 2019
 Publication Status: Published online
 Pages: -
 Publishing info: -
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Title: Communications Physics
Source Genre: Journal
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Publ. Info: London : Nature Publishing Group
Pages: - Volume / Issue: 10 Sequence Number: 1046 Start / End Page: - Identifier: ISSN: 2399-3650
CoNE: https://pure.mpg.de/cone/journals/resource/2399-3650