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

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 pollution-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 urban emissions of oxides of nitrogen 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. Furthermore, the implication is that increasing anthropogenic emissions in future years might substantially enhance biogenic SOA formation in pristine locations like the Amazon.

Authors:
 [1]; ORCiD logo [2];  [3];  [4];  [4];  [1];  [5];  [6];  [1];  [1];  [1];  [1];  [7];  [8];  [9];  [10];  [11];  [12];  [13];  [14] more »;  [11];  [1];  [1];  [15];  [16];  [17];  [15];  [1];  [2];  [17];  [18];  [19];  [9];  [4];  [1];  [1];  [20] « less
  1. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States)
  3. Max Planck Institute for Chemistry, Mainz (Germany); Univ. of California San Diego, La Jolla, CA (United States)
  4. Univ. of Sao Paulo, Sao Paulo (Brazil)
  5. Univ. de Sao Paulo, Sao Paulo (Brazil)
  6. Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Japan Meteorological Agency, Ibaraki (Japan)
  7. Pennsylvania State Univ., University Park, PA (United States)
  8. Univ. of Aarhus, Aarhus (Denmark)
  9. Univ. of California, Berkeley, CA (United States)
  10. Instituto Nacional de Pesquisas da Amazonia (INPA), Manaus (Brazil)
  11. Univ. of Alagoas (Brazil)
  12. Univ. of California, Irvine, CA (United States)
  13. Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Univ. of California, Irvine, CA (United States)
  14. Colorado State Univ., Fort Collins, CO (United States)
  15. Harvard Univ., Cambridge, MA (United States)
  16. Columbia Univ., New York, NY (United States)
  17. Amazonas State Univ., Amazonas (Brazil)
  18. Univ. of Washington, Seattle, WA (United States)
  19. Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States)
  20. Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Univ. of Science and Technology of China (China)
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Biological and Environmental Research (BER) (SC-23)
OSTI Identifier:
1491678
Report Number(s):
BNL-210907-2019-JAAM
Journal ID: ISSN 2041-1723
Grant/Contract Number:  
SC0012704
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Nature Communications
Additional Journal Information:
Journal Volume: 10; Journal ID: ISSN 2041-1723
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; Secondary organic aerosol; biogenic; oxidants; Amazon; enhance

Citation Formats

Shrivastava, Manish, Springston, Stephen R., Andreae, Meinrat O., Artaxo, Paulo, Barbosa, Henrique, Berg, Larry K., Brito, Joel, Ching, Joseph, Easter, Richard C., Fan, Jiwen, Fast, Jerome D., Feng, Zhe, Fuentes, Jose D., Glasius, Marianne, Goldstein, Allen H., Gomes, Eliane Alves, Gomes, Helber, Gu, Dasa, Guenther, Alex, Jathar, Shantanu H., Kim, Saewung, Liu, Ying, Lou, Sijia, Martin, Scot T., McNeill, V. Faye, Medeiros, Alan, de Sa, Suzane S., Shilling, John E., Springston, Stephen R., Souza, R. F., Thornton, Joel A., Isaacman-VanWertz, Gabriel, Yee, Lindsay, Ynoue, Rita, Zaveri, Rahul A., Zelenyuk, Alla, and Zhao, Chun. Urban pollution greatly enhances formation of natural aerosols over the Amazon rainforest. United States: N. p., 2019. Web. doi:10.1038/s41467-019-08909-4.
Shrivastava, Manish, Springston, Stephen R., Andreae, Meinrat O., Artaxo, Paulo, Barbosa, Henrique, Berg, Larry K., Brito, Joel, Ching, Joseph, Easter, Richard C., Fan, Jiwen, Fast, Jerome D., Feng, Zhe, Fuentes, Jose D., Glasius, Marianne, Goldstein, Allen H., Gomes, Eliane Alves, Gomes, Helber, Gu, Dasa, Guenther, Alex, Jathar, Shantanu H., Kim, Saewung, Liu, Ying, Lou, Sijia, Martin, Scot T., McNeill, V. Faye, Medeiros, Alan, de Sa, Suzane S., Shilling, John E., Springston, Stephen R., Souza, R. F., Thornton, Joel A., Isaacman-VanWertz, Gabriel, Yee, Lindsay, Ynoue, Rita, Zaveri, Rahul A., Zelenyuk, Alla, & Zhao, Chun. Urban pollution greatly enhances formation of natural aerosols over the Amazon rainforest. United States. doi:10.1038/s41467-019-08909-4.
Shrivastava, Manish, Springston, Stephen R., Andreae, Meinrat O., Artaxo, Paulo, Barbosa, Henrique, Berg, Larry K., Brito, Joel, Ching, Joseph, Easter, Richard C., Fan, Jiwen, Fast, Jerome D., Feng, Zhe, Fuentes, Jose D., Glasius, Marianne, Goldstein, Allen H., Gomes, Eliane Alves, Gomes, Helber, Gu, Dasa, Guenther, Alex, Jathar, Shantanu H., Kim, Saewung, Liu, Ying, Lou, Sijia, Martin, Scot T., McNeill, V. Faye, Medeiros, Alan, de Sa, Suzane S., Shilling, John E., Springston, Stephen R., Souza, R. F., Thornton, Joel A., Isaacman-VanWertz, Gabriel, Yee, Lindsay, Ynoue, Rita, Zaveri, Rahul A., Zelenyuk, Alla, and Zhao, Chun. Tue . "Urban pollution greatly enhances formation of natural aerosols over the Amazon rainforest". United States. doi:10.1038/s41467-019-08909-4. https://www.osti.gov/servlets/purl/1491678.
@article{osti_1491678,
title = {Urban pollution greatly enhances formation of natural aerosols over the Amazon rainforest},
author = {Shrivastava, Manish and Springston, Stephen R. and Andreae, Meinrat O. and Artaxo, Paulo and Barbosa, Henrique and Berg, Larry K. and Brito, Joel and Ching, Joseph and Easter, Richard C. and Fan, Jiwen and Fast, Jerome D. and Feng, Zhe and Fuentes, Jose D. and Glasius, Marianne and Goldstein, Allen H. and Gomes, Eliane Alves and Gomes, Helber and Gu, Dasa and Guenther, Alex and Jathar, Shantanu H. and Kim, Saewung and Liu, Ying and Lou, Sijia and Martin, Scot T. and McNeill, V. Faye and Medeiros, Alan and de Sa, Suzane S. and Shilling, John E. and Springston, Stephen R. and Souza, R. F. and Thornton, Joel A. and Isaacman-VanWertz, Gabriel and Yee, Lindsay and Ynoue, Rita and Zaveri, Rahul A. and Zelenyuk, Alla and Zhao, Chun},
abstractNote = {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 pollution-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 urban emissions of oxides of nitrogen 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. Furthermore, the implication is that increasing anthropogenic emissions in future years might substantially enhance biogenic SOA formation in pristine locations like the Amazon.},
doi = {10.1038/s41467-019-08909-4},
journal = {Nature Communications},
issn = {2041-1723},
number = ,
volume = 10,
place = {United States},
year = {2019},
month = {3}
}

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Works referenced in this record:

The Green Ocean Amazon Experiment (GoAmazon2014/5) Observes Pollution Affecting Gases, Aerosols, Clouds, and Rainfall over the Rain Forest
journal, May 2017

  • Martin, S. T.; Artaxo, P.; Machado, L.
  • Bulletin of the American Meteorological Society, Vol. 98, Issue 5, p. 981-997
  • DOI: 10.1175/BAMS-D-15-00221.1