Atmospheric microplastic transport and deposition to urban and pristine tropical locations in Southeast Asia.

Autor: Hee YY; Institute of Oceanography and Environment, Universiti Malaysia Terengganu, Kuala Nerus, Malaysia. Electronic address: y.y.hee@umt.edu.my., Hanif NM; Department of Earth Sciences and Environment, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi, Malaysia., Weston K; Independent environmental consultant, Norwich, United Kingdom., Latif MT; Department of Earth Sciences and Environment, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi, Malaysia., Suratman S; Institute of Oceanography and Environment, Universiti Malaysia Terengganu, Kuala Nerus, Malaysia., Rusli MU; Institute of Oceanography and Environment, Universiti Malaysia Terengganu, Kuala Nerus, Malaysia., Mayes AG; School of Chemistry, University of East Anglia, Norwich, United Kingdom.
Jazyk: angličtina
Zdroj: The Science of the total environment [Sci Total Environ] 2023 Dec 01; Vol. 902, pp. 166153. Date of Electronic Publication: 2023 Aug 08.
DOI: 10.1016/j.scitotenv.2023.166153
Abstrakt: Atmospheric microplastic transport is an important delivery pathway with the deposition of microplastics to ecologically important regions raising environmental concerns. Investigating atmospheric delivery pathways and their deposition rates in different ecosystems is necessary to understanding its global impact. In this study, atmospheric deposition was collected at three sites in Malaysia, two urban and one pristine, covering the Northeast and Southwest monsoons to quantify the role of this pathway in Southeast Asia. Air mass back trajectories showed long-range atmospheric transport of microplastics to all sites with atmospheric deposition varying from 114 to 689 MP/m 2 /day. For the east coast of Peninsular Malaysia, monsoonal season influenced microplastic transport and deposition rate with peak microplastic deposition during the Northeast monsoon due to higher wind speed. MP morphology combined with size fractionation and plastic type at the coastal sites indicated a role for long-range marine transport of MPs that subsequently provided a local marine source to the atmosphere at the coastal sites.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2023. Published by Elsevier B.V.)
Databáze: MEDLINE
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