Potential Ecological Risk and Characterization of Floating Microplastics in the Surface Water of a Highly Urbanized Large River in Southeast Asia
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12520%2F25%3A43910061" target="_blank" >RIV/60076658:12520/25:43910061 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1155/sci5/3043345" target="_blank" >https://doi.org/10.1155/sci5/3043345</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1155/sci5/3043345" target="_blank" >10.1155/sci5/3043345</a>
Alternative languages
Result language
angličtina
Original language name
Potential Ecological Risk and Characterization of Floating Microplastics in the Surface Water of a Highly Urbanized Large River in Southeast Asia
Original language description
Microplastics (MPs) are widespread in aquatic environments and pose significant threats to ecosystems, wildlife, and human health. While MP pollution in water has received considerable attention, there is still limited understanding of its regional distribution, shapes, and associated risks. The Jamuna River, one of the largest freshwater ecosystems in Bangladesh, is increasingly contaminated by hazardous MPs, likely originating from industrial, domestic, hospital waste, and municipal sewage. This study aimed to investigate the abundance, distribution, characteristics, and ecological risks of MPs in the surface water of a highly urbanized large river in Southeast Asia. Water samples were collected from 30 sites along a 44 km stretch of the river during two periods: March to April (premonsoon) and July to August (monsoon). A total of 386 MPs were identified in the collected samples. The mean abundance of MPs in the surface water of the Jamuna River ranged from 0.01 to 0.15 MPs/L during the premonsoon season and from 0.01 to 0.13 MPs/L during the monsoon season. Approximately 79.78%-87.98% of the particles fell within the 100-1500 mu m size range. The presence of polyethylene (31.60%-37.24%), polystyrene (PS) (6.71%-10.81%), and polyvinyl chloride (PVC) (5.64%-7.28%) contributed significantly to MP contamination, posing a high health hazard. Several risk assessment models were employed to evaluate the associated risks. The pollution load index (PLI) classified the contamination under risk Category I (minor pollution). Meanwhile, the polymer hazard index (PHI) values were 305.65 for the premonsoon season and 208.0 for the monsoon season, both indicating hazard Category IV ("danger" level). The potential ecological risk index (PERI) placed the Jamuna River surface water in the "extreme danger" risk category, with values of 2454.43 during the premonsoon and 1911.29 during the monsoon. The prevalence of high-hazard polymers such as PVC and PS suggests a potential risk of toxicological effects for aquatic organisms and humans through food web transfer. This baseline study provides valuable insights into the MP pollution of one of the country's major rivers. It may help improve our understanding of land-based MP inputs from inland water bodies severely impacted by anthropogenic activities.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10503 - Water resources
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Scientifica
ISSN
2090-908X
e-ISSN
2090-908X
Volume of the periodical
2025
Issue of the periodical within the volume
1
Country of publishing house
EG - EGYPT
Number of pages
19
Pages from-to
nestránkováno
UT code for WoS article
001588705900001
EID of the result in the Scopus database
2-s2.0-105018640421