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

Author

Listed:
  • Manish Shrivastava

    (Pacific Northwest National Laboratory)

  • Meinrat O. Andreae

    (King Saud University
    University of California San Diego
    Max Planck Institute for Chemistry)

  • Paulo Artaxo

    (University of São Paulo)

  • Henrique M. J. Barbosa

    (University of São Paulo)

  • Larry K. Berg

    (Pacific Northwest National Laboratory)

  • Joel Brito

    (University of Lille, SAGE)

  • Joseph Ching

    (Japan Meteorological Agency)

  • Richard C. Easter

    (Pacific Northwest National Laboratory)

  • Jiwen Fan

    (Pacific Northwest National Laboratory)

  • Jerome D. Fast

    (Pacific Northwest National Laboratory)

  • Zhe Feng

    (Pacific Northwest National Laboratory)

  • Jose D. Fuentes

    (Penn State University)

  • Marianne Glasius

    (Aarhus University)

  • Allen H. Goldstein

    (University of California)

  • Eliane Gomes Alves

    (Instituto Nacional de Pesquisas da Amazônia (INPA))

  • Helber Gomes

    (Federal University of Alagoas)

  • Dasa Gu

    (University of California)

  • Alex Guenther

    (Pacific Northwest National Laboratory
    University of California)

  • Shantanu H. Jathar

    (Colorado State University)

  • Saewung Kim

    (University of California)

  • Ying Liu

    (Pacific Northwest National Laboratory)

  • Sijia Lou

    (Pacific Northwest National Laboratory)

  • Scot T. Martin

    (Harvard University)

  • V. Faye McNeill

    (Columbia University)

  • Adan Medeiros

    (Center of Superior Studies of Tefé, R. Brasília)

  • Suzane S. Sá

    (Harvard University)

  • John E. Shilling

    (Pacific Northwest National Laboratory)

  • Stephen R. Springston

    (Brookhaven National Laboratory)

  • R. A. F. Souza

    (Superior School of Technology)

  • Joel A. Thornton

    (University of Washington)

  • Gabriel Isaacman-VanWertz

    (Virginia Tech)

  • Lindsay D. Yee

    (University of California)

  • Rita Ynoue

    (University of Sao Paulo)

  • Rahul A. Zaveri

    (Pacific Northwest National Laboratory)

  • Alla Zelenyuk

    (Pacific Northwest National Laboratory)

  • Chun Zhao

    (University of Science and Technology of China)

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.

Suggested Citation

  • Manish Shrivastava & Meinrat O. Andreae & Paulo Artaxo & Henrique M. J. Barbosa & Larry K. Berg & Joel Brito & Joseph Ching & Richard C. Easter & Jiwen Fan & Jerome D. Fast & Zhe Feng & Jose D. Fuente, 2019. "Urban pollution greatly enhances formation of natural aerosols over the Amazon rainforest," Nature Communications, Nature, vol. 10(1), pages 1-12, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-08909-4
    DOI: 10.1038/s41467-019-08909-4
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    Cited by:

    1. Masayuki Takeuchi & Thomas Berkemeier & Gamze Eris & Nga Lee Ng, 2022. "Non-linear effects of secondary organic aerosol formation and properties in multi-precursor systems," Nature Communications, Nature, vol. 13(1), pages 1-13, December.
    2. Wei Nie & Chao Yan & Liwen Yang & Pontus Roldin & Yuliang Liu & Alexander L. Vogel & Ugo Molteni & Dominik Stolzenburg & Henning Finkenzeller & Antonio Amorim & Federico Bianchi & Joachim Curtius & Lu, 2023. "NO at low concentration can enhance the formation of highly oxygenated biogenic molecules in the atmosphere," Nature Communications, Nature, vol. 14(1), pages 1-11, December.
    3. James Weber & Scott Archer-Nicholls & Nathan Luke Abraham & Youngsub Matthew Shin & Paul Griffiths & Daniel P. Grosvenor & Catherine E. Scott & Alex T. Archibald, 2022. "Chemistry-driven changes strongly influence climate forcing from vegetation emissions," Nature Communications, Nature, vol. 13(1), pages 1-12, December.
    4. José Miguel Aguilera & Felipe Larraín, 2021. "Natural laboratories in emerging countries and comparative advantages in science: Evidence from Chile," Review of Policy Research, Policy Studies Organization, vol. 38(6), pages 732-753, November.

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