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Emissions and fate of organophosphate esters in outdoor urban environments

Author

Listed:
  • Timothy F. M. Rodgers

    (University of British Columbia)

  • Amanda Giang

    (University of British Columbia
    University of British Columbia)

  • Miriam L. Diamond

    (University of Toronto
    University of Toronto)

  • Emma Gillies

    (University of British Columbia)

  • Amandeep Saini

    (Environment and Climate Change Canada)

Abstract

Cities are drivers of the global economy, containing products and industries that emit many chemicals. Here, we use the Multimedia Urban Model (MUM) to estimate atmospheric emissions and fate of organophosphate esters (OPEs) from 19 global mega or major cities, finding that they collectively emitted ~81,000 kg yr−1 of ∑10OPEs in 2018. Typically, polar “mobile” compounds tend to partition to and be advected by water, while non-polar “bioaccumulative” chemicals do not. Depending on the built environment and climate of the city considered, the same compound behaves like either a mobile or a bioaccumulative chemical. Cities with large impervious surface areas, such as Kolkata, mobilize even bioaccumulative contaminants to aquatic ecosystems. By contrast, cities with large areas of vegetation fix and transform contaminants, reducing loadings to aquatic ecosystems. Our results therefore suggest that urban design choices could support policies aimed at reducing chemical releases to the broader environment without increasing exposure for urban residents.

Suggested Citation

  • Timothy F. M. Rodgers & Amanda Giang & Miriam L. Diamond & Emma Gillies & Amandeep Saini, 2023. "Emissions and fate of organophosphate esters in outdoor urban environments," Nature Communications, Nature, vol. 14(1), pages 1-12, December.
    • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-36455-7
    DOI: 10.1038/s41467-023-36455-7
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    References listed on IDEAS

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