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dc.contributor.authorAbbasi, S
dc.contributor.authorAhmadi, F
dc.contributor.authorKhodabakhshloo, N
dc.contributor.authorPourmahmood, H
dc.contributor.authorEsfandiari, A
dc.contributor.authorMokhtarzadeh, Z
dc.contributor.authorRahnama, S
dc.contributor.authorDehbandi, R
dc.contributor.authorVazirzadeh, A
dc.contributor.authorTurner, A
dc.date.accessioned2024-02-19T10:16:47Z
dc.date.available2024-02-19T10:16:47Z
dc.date.issued2024-02
dc.identifier.issn1309-1042
dc.identifier.other101977
dc.identifier.urihttps://pearl.plymouth.ac.uk/handle/10026.1/22061
dc.description.abstract

The atmosphere plays a critical role in the regional and global transportation and redistribution of microplastics (MPs). However, the significance of rainfall and its means of scavenging MPs are not well understood. In this study, MP deposition was determined during successive dry and rainy events over eight consecutive days in the Shiraz region of Iran. Flux magnitudes and temporal distributions at six sites within and outside the city (including a remote, non-urbanised location) were similar and revealed a progressive increase in MP abundance and deposition during dry periods (up to about 50 MP m−2 h−1) and subsequent relatively rapid wet deposition (washout) by incipient rainfall (peaking at about 130 MP m−2 h−1). Wet deposition of MPs progressively decreased throughout the rainfall event, but with evidence of secondary peaks, before atmospheric accumulation and dry deposition increased during the next dry event and the cycle continued. Dry and wet deposition were dominated by fibres (that included polyester-polyethylene terephthalate, polystyrene, polyvinyl chloride and polyethylene) but the evolution of deposition did not appear to be associated with changes in MP size. These observations indicate that, as with other airborne pollutants, initial rainfall is an efficient scavenger of atmospheric MPs. Along with variations in methodology, this effect may contribute to the wide variation in MP fluxes reported in the literature.

dc.format.extent101977-101977
dc.languageen
dc.publisherElsevier BV
dc.subjectFibres
dc.subjectAccumulation
dc.subjectPrecipitation
dc.subjectAirborne
dc.subjectScavenging
dc.titleAtmospheric deposition of microplastics in Shiraz, Iran
dc.typejournal-article
dc.typeArticle
plymouth.issue2
plymouth.volume15
plymouth.publisher-urlhttp://dx.doi.org/10.1016/j.apr.2023.101977
plymouth.publication-statusPublished
plymouth.journalAtmospheric Pollution Research
dc.identifier.doi10.1016/j.apr.2023.101977
plymouth.organisational-group|Plymouth
plymouth.organisational-group|Plymouth|Research Groups
plymouth.organisational-group|Plymouth|Faculty of Science and Engineering
plymouth.organisational-group|Plymouth|Faculty of Science and Engineering|School of Geography, Earth and Environmental Sciences
plymouth.organisational-group|Plymouth|Research Groups|Marine Institute
plymouth.organisational-group|Plymouth|REF 2021 Researchers by UoA
plymouth.organisational-group|Plymouth|Users by role
plymouth.organisational-group|Plymouth|Users by role|Academics
plymouth.organisational-group|Plymouth|Research Groups|BEACh
plymouth.organisational-group|Plymouth|REF 2021 Researchers by UoA|UoA07 Earth Systems and Environmental Sciences
plymouth.organisational-group|Plymouth|REF 2028 Researchers by UoA
plymouth.organisational-group|Plymouth|REF 2028 Researchers by UoA|UoA07 Earth Systems and Environmental Sciences
dcterms.dateAccepted2023-10-25
dc.date.updated2024-02-19T10:16:47Z
dc.rights.embargodate2024-11-2
rioxxterms.versionofrecord10.1016/j.apr.2023.101977


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