Microplastic pollution in the Jamuna River, Bangladesh: Abundance, polymer types, characteristics, and sources in riverbank and riverbed sediments

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12520%2F25%3A43910054" target="_blank" >RIV/60076658:12520/25:43910054 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.hazmp.2025.100006" target="_blank" >https://doi.org/10.1016/j.hazmp.2025.100006</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Microplastic pollution in the Jamuna River, Bangladesh: Abundance, polymer types, characteristics, and sources in riverbank and riverbed sediments

Popis výsledku v původním jazyce

Microplastics (MPs) are pervasive in aquatic environments and pose serious threats to human health, wildlife,and ecosystems. Regional distribution, morphological characteristics, and associated ecological risks of MPsremain poorly understood, particularly in South Asia. The Jamuna River, one of Bangladesh’s largest freshwatersystems, is increasingly affected by microplastic contamination, likely stemming from diverse point and nonpointsources. This study systematically investigated and compared the distribution, characterization, andecological risk of MPs in riverbank and riverbed sediments of the Jamuna River. Surface sediments werecollected from 20 sites along a 44-km transect across the Tangail and Sirajganj districts. Our results showed thatriverbed sediments contained a higher concentration of MPs (484 ± 96 MPs/kg) compared to riverbank sediments(332 ± 98 MPs/kg). Despite the difference in abundance, both sediment types showed similar morphometricprofiles, dominated by fibrous particles, black fragments, and particles &lt; 500 μm. The identified polymersincluded polyethylene (PE), polyethylene terephthalate (PET), polypropylene (PP), polystyrene (PS), and polyvinylchloride (PVC), with PE being the most prevalent. The polymer hazard index (PHI) classified both sedimenttypes under risk level IV (high hazard), while the potential ecological risk index (PERI) placed them in riskcategory V (extreme danger). These findings highlight the critical need for continuous monitoring and theimplementation of effective regulatory measures to mitigate microplastic pollution in Bangladesh’s river systems.

Název v anglickém jazyce

Microplastic pollution in the Jamuna River, Bangladesh: Abundance, polymer types, characteristics, and sources in riverbank and riverbed sediments

Popis výsledku anglicky

Microplastics (MPs) are pervasive in aquatic environments and pose serious threats to human health, wildlife,and ecosystems. Regional distribution, morphological characteristics, and associated ecological risks of MPsremain poorly understood, particularly in South Asia. The Jamuna River, one of Bangladesh’s largest freshwatersystems, is increasingly affected by microplastic contamination, likely stemming from diverse point and nonpointsources. This study systematically investigated and compared the distribution, characterization, andecological risk of MPs in riverbank and riverbed sediments of the Jamuna River. Surface sediments werecollected from 20 sites along a 44-km transect across the Tangail and Sirajganj districts. Our results showed thatriverbed sediments contained a higher concentration of MPs (484 ± 96 MPs/kg) compared to riverbank sediments(332 ± 98 MPs/kg). Despite the difference in abundance, both sediment types showed similar morphometricprofiles, dominated by fibrous particles, black fragments, and particles &lt; 500 μm. The identified polymersincluded polyethylene (PE), polyethylene terephthalate (PET), polypropylene (PP), polystyrene (PS), and polyvinylchloride (PVC), with PE being the most prevalent. The polymer hazard index (PHI) classified both sedimenttypes under risk level IV (high hazard), while the potential ecological risk index (PERI) placed them in riskcategory V (extreme danger). These findings highlight the critical need for continuous monitoring and theimplementation of effective regulatory measures to mitigate microplastic pollution in Bangladesh’s river systems.

Druh

J_ost - Ostatní články v recenzovaných periodicích

CEP obor

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OECD FORD obor

10511 - Environmental sciences (social aspects to be 5.7)

Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of hazardous materials. Plastics

ISSN

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e-ISSN

3051-0600

Svazek periodika

1

Číslo periodika v rámci svazku

neuvedeno

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

10

Strana od-do

nestránkováno

Kód UT WoS článku

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EID výsledku v databázi Scopus

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