Seasonal influence on pollution index and risk of multiple compositions of microplastics in an urban river.

Huang, C-W; Li, Y-L; Lin, C; Bui, X-T; Vo, T-D-H; Ngo, HH

Seasonal influence on pollution index and risk of multiple compositions of microplastics in an urban river.

Huang, C-W Li, Y-L Lin, C Bui, X-T Vo, T-D-H Ngo, HH

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Publisher:: Elsevier
Publication Type:: Journal Article
Citation:: Sci Total Environ, 2023, 859, (Pt 1), pp. 160021
Issue Date:: 2023-02-10

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Field	Value	Language
dc.contributor.author	Huang, C-W
dc.contributor.author	Li, Y-L
dc.contributor.author	Lin, C
dc.contributor.author	Bui, X-T
dc.contributor.author	Vo, T-D-H
dc.contributor.author	Ngo, HH
dc.date.accessioned	2023-04-12T06:07:14Z
dc.date.available	2022-11-03
dc.date.available	2023-04-12T06:07:14Z
dc.date.issued	2023-02-10
dc.identifier.citation	Sci Total Environ, 2023, 859, (Pt 1), pp. 160021
dc.identifier.issn	0048-9697
dc.identifier.issn	1879-1026
dc.identifier.uri	http://hdl.handle.net/10453/169644
dc.description.abstract	Emerging contaminant microplastics (MPs) are getting worldwide attention for their ubiquitous occurrence and potential risk to the environment. However, the seasonal influence on freshwater MP pollution remains poorly understood. To better understand and evaluate the riverine MPs in different seasons, this study conducted the risk assessment of MPs in an urban river, Houjin River, during the different seasons. The present study found that the MPs (0.1-5 mm, mostly 0.1-2 mm) were more abundant in the dry season (183.33 ± 128.95 items/m3) compared with the wet season (102.08 ± 45.80 items/m3). Similarly, the mixture of different MPs polymers was more diverse in the dry season. The related pollution indices such as the contamination factor (CF) and pollution load index (PLI) showed that average CF and PLI were 5.15 and 2.10 in the dry season, which significantly decreased to 1.58 and 1.25, respectively, in the wet season (p < 0.05). Additionally, significant difference of the average risk quotient (RQ) was observed, which was 0.037 in the dry season and 0.021 in the wet season (p < 0.05). To sum up, the results of this study indicate the seasonal effects on the pollution and risk of multiple compositions of MPs in the urban river, suggesting higher impacts of riverine MPs pollution in the dry season, as well as the potential increase of MPs, may lead to environmental risk in the future.
dc.format	Print-Electronic
dc.language	eng
dc.publisher	Elsevier
dc.relation.ispartof	Sci Total Environ
dc.relation.isbasedon	10.1016/j.scitotenv.2022.160021
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject.classification	Environmental Sciences
dc.subject.mesh	Microplastics
dc.subject.mesh	Plastics
dc.subject.mesh	Environmental Monitoring
dc.subject.mesh	Water Pollutants, Chemical
dc.subject.mesh	Rivers
dc.subject.mesh	Plastics
dc.subject.mesh	Water Pollutants, Chemical
dc.subject.mesh	Rivers
dc.subject.mesh	Environmental Monitoring
dc.subject.mesh	Microplastics
dc.subject.mesh	Microplastics
dc.subject.mesh	Plastics
dc.subject.mesh	Environmental Monitoring
dc.subject.mesh	Water Pollutants, Chemical
dc.subject.mesh	Rivers
dc.title	Seasonal influence on pollution index and risk of multiple compositions of microplastics in an urban river.
dc.type	Journal Article
utslib.citation.volume	859
utslib.location.activity	Netherlands
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
utslib.copyright.status	closed_access	*
dc.date.updated	2023-04-12T06:07:13Z
pubs.issue	Pt 1
pubs.publication-status	Published
pubs.volume	859
utslib.citation.issue	Pt 1

Abstract:

Emerging contaminant microplastics (MPs) are getting worldwide attention for their ubiquitous occurrence and potential risk to the environment. However, the seasonal influence on freshwater MP pollution remains poorly understood. To better understand and evaluate the riverine MPs in different seasons, this study conducted the risk assessment of MPs in an urban river, Houjin River, during the different seasons. The present study found that the MPs (0.1-5 mm, mostly 0.1-2 mm) were more abundant in the dry season (183.33 ± 128.95 items/m3) compared with the wet season (102.08 ± 45.80 items/m3). Similarly, the mixture of different MPs polymers was more diverse in the dry season. The related pollution indices such as the contamination factor (CF) and pollution load index (PLI) showed that average CF and PLI were 5.15 and 2.10 in the dry season, which significantly decreased to 1.58 and 1.25, respectively, in the wet season (p < 0.05). Additionally, significant difference of the average risk quotient (RQ) was observed, which was 0.037 in the dry season and 0.021 in the wet season (p < 0.05). To sum up, the results of this study indicate the seasonal effects on the pollution and risk of multiple compositions of MPs in the urban river, suggesting higher impacts of riverine MPs pollution in the dry season, as well as the potential increase of MPs, may lead to environmental risk in the future.

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http://hdl.handle.net/10453/169644