Microplastic contamination and ecological risk assessment in tropical riverine surface water of Selangor River Basin, Malaysia
Microplastics in river ecosystems have raised global concern due to their harmful impact on aquatic organisms. This study analyzed microplastic abundance and estimated the risk posed by microplastics in the Selangor River Basin, a prominent river basin in Selangor, Malaysia. Surface water was collec...
| Main Authors: | , , , , , , |
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| Format: | Article |
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American Chemical Society
2024
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| Online Access: | http://psasir.upm.edu.my/id/eprint/116054/ |
| _version_ | 1848866917913198592 |
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| author | Mohd Zaki, Muhammad Rozaimi Zainuddin, Azim Haziq Saifuddin, Muhammad Firdaus Umar Razak, Muhammad Raznisyafiq Mohd Isa, Noorain Ash’aari, Zulfa Hanan Aris, Ahmad Zaharin |
| author_facet | Mohd Zaki, Muhammad Rozaimi Zainuddin, Azim Haziq Saifuddin, Muhammad Firdaus Umar Razak, Muhammad Raznisyafiq Mohd Isa, Noorain Ash’aari, Zulfa Hanan Aris, Ahmad Zaharin |
| author_sort | Mohd Zaki, Muhammad Rozaimi |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Microplastics in river ecosystems have raised global concern due to their harmful impact on aquatic organisms. This study analyzed microplastic abundance and estimated the risk posed by microplastics in the Selangor River Basin, a prominent river basin in Selangor, Malaysia. Surface water was collected from 25 sampling points and divided into three regions: upstream, tributaries, and downstream. Microplastic particles were detected by stereomicroscopy and Fourier-transform infrared spectroscopy. A total of 361 particles were detected across all the samples, with an average abundance of 1.44 ± 0.62 particles/L. Although the microplastics abundance increases from upstream (1.35 ± 0.61 particles/L) to downstream (1.87 ± 0.95 particles/L), there is no significant correlation with geographical and environmental variables in the Selangor River Basin. Majority of the microplastics were 600-1000 μm (26.3%), fiber (64.3%), transparent (51.8%), and polyethylene (38.6%). The ecological risk of microplastics was determined using the risk quotient (RQ) method, suggesting a low ecological risk of microplastics (RQ = 0.06) in the Selangor River Basin. The present study provides a baseline for microplastic contamination and basis for ecological risk in river basins. The results will be useful for supporting mitigation measures and risk management of microplastics pollution in riverine ecosystems. |
| first_indexed | 2025-11-15T14:28:13Z |
| format | Article |
| id | upm-116054 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-15T14:28:13Z |
| publishDate | 2024 |
| publisher | American Chemical Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-1160542025-04-21T03:06:56Z http://psasir.upm.edu.my/id/eprint/116054/ Microplastic contamination and ecological risk assessment in tropical riverine surface water of Selangor River Basin, Malaysia Mohd Zaki, Muhammad Rozaimi Zainuddin, Azim Haziq Saifuddin, Muhammad Firdaus Umar Razak, Muhammad Raznisyafiq Mohd Isa, Noorain Ash’aari, Zulfa Hanan Aris, Ahmad Zaharin Microplastics in river ecosystems have raised global concern due to their harmful impact on aquatic organisms. This study analyzed microplastic abundance and estimated the risk posed by microplastics in the Selangor River Basin, a prominent river basin in Selangor, Malaysia. Surface water was collected from 25 sampling points and divided into three regions: upstream, tributaries, and downstream. Microplastic particles were detected by stereomicroscopy and Fourier-transform infrared spectroscopy. A total of 361 particles were detected across all the samples, with an average abundance of 1.44 ± 0.62 particles/L. Although the microplastics abundance increases from upstream (1.35 ± 0.61 particles/L) to downstream (1.87 ± 0.95 particles/L), there is no significant correlation with geographical and environmental variables in the Selangor River Basin. Majority of the microplastics were 600-1000 μm (26.3%), fiber (64.3%), transparent (51.8%), and polyethylene (38.6%). The ecological risk of microplastics was determined using the risk quotient (RQ) method, suggesting a low ecological risk of microplastics (RQ = 0.06) in the Selangor River Basin. The present study provides a baseline for microplastic contamination and basis for ecological risk in river basins. The results will be useful for supporting mitigation measures and risk management of microplastics pollution in riverine ecosystems. American Chemical Society 2024-07-04 Article PeerReviewed Mohd Zaki, Muhammad Rozaimi and Zainuddin, Azim Haziq and Saifuddin, Muhammad Firdaus Umar and Razak, Muhammad Raznisyafiq and Mohd Isa, Noorain and Ash’aari, Zulfa Hanan and Aris, Ahmad Zaharin (2024) Microplastic contamination and ecological risk assessment in tropical riverine surface water of Selangor River Basin, Malaysia. ACS ES&T Water, 4 (8). pp. 3225-3234. ISSN 2690-0637 https://pubs.acs.org/doi/abs/10.1021/acsestwater.4c00097?ref=vsi_water-issues-southeast-asia#:~:text=The%20ecological%20risk%20of%20microplastics,ecological%20risk%20in%20river%20basins. 10.1021/acsestwater.4c00097 |
| spellingShingle | Mohd Zaki, Muhammad Rozaimi Zainuddin, Azim Haziq Saifuddin, Muhammad Firdaus Umar Razak, Muhammad Raznisyafiq Mohd Isa, Noorain Ash’aari, Zulfa Hanan Aris, Ahmad Zaharin Microplastic contamination and ecological risk assessment in tropical riverine surface water of Selangor River Basin, Malaysia |
| title | Microplastic contamination and ecological risk assessment in tropical riverine surface water of Selangor River Basin, Malaysia |
| title_full | Microplastic contamination and ecological risk assessment in tropical riverine surface water of Selangor River Basin, Malaysia |
| title_fullStr | Microplastic contamination and ecological risk assessment in tropical riverine surface water of Selangor River Basin, Malaysia |
| title_full_unstemmed | Microplastic contamination and ecological risk assessment in tropical riverine surface water of Selangor River Basin, Malaysia |
| title_short | Microplastic contamination and ecological risk assessment in tropical riverine surface water of Selangor River Basin, Malaysia |
| title_sort | microplastic contamination and ecological risk assessment in tropical riverine surface water of selangor river basin, malaysia |
| url | http://psasir.upm.edu.my/id/eprint/116054/ http://psasir.upm.edu.my/id/eprint/116054/ http://psasir.upm.edu.my/id/eprint/116054/ |