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Ecological risk profiling of microplastic load in commercial aquaculture of Bangladesh: A multi-approach analysis across species-specific ponds

Journal of environmental chemical engineering 2025 2 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 58 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Jahanara Akhter Lipi, Khadijatul Kubra Riya, Malek Ali, M. Belal Hossain M. Belal Hossain M. Belal Hossain Jahanara Akhter Lipi, M. Belal Hossain Khadijatul Kubra Riya, M. Belal Hossain M. Belal Hossain M. Belal Hossain M. Belal Hossain M. Belal Hossain M. Belal Hossain Khadijatul Kubra Riya, M. Belal Hossain Jahanara Akhter Lipi, Khadijatul Kubra Riya, M. Belal Hossain Khadijatul Kubra Riya, M. Belal Hossain M. Belal Hossain M. Belal Hossain Md Anisuzzaman, Md Anisuzzaman, Md Anisuzzaman, Md Anisuzzaman, Md Anisuzzaman, Khadijatul Kubra Riya, Khadijatul Kubra Riya, Khadijatul Kubra Riya, Jahanara Akhter Lipi, Md Anisuzzaman, Md Anisuzzaman, Md Anisuzzaman, Md Anisuzzaman, Md Anisuzzaman, M. Belal Hossain Jahanara Akhter Lipi, Jahanara Akhter Lipi, Khadijatul Kubra Riya, Khadijatul Kubra Riya, Khadijatul Kubra Riya, Khadijatul Kubra Riya, Khadijatul Kubra Riya, Khadijatul Kubra Riya, M. Belal Hossain Takaomi Arai, Takaomi Arai, Takaomi Arai, Norhayati Ngah, Takaomi Arai, Takaomi Arai, Takaomi Arai, Takaomi Arai, M. Belal Hossain M. Belal Hossain Takaomi Arai, Takaomi Arai, Takaomi Arai, Takaomi Arai, Takaomi Arai, Norhayati Ngah, Takaomi Arai, Takaomi Arai, Norhayati Ngah, Takaomi Arai, Takaomi Arai, M. Belal Hossain M. Belal Hossain Takaomi Arai, Norhayati Ngah, Takaomi Arai, Norhayati Ngah, Takaomi Arai, M. Belal Hossain M. Belal Hossain M. Belal Hossain M. Belal Hossain M. Belal Hossain M. Belal Hossain M. Belal Hossain M. Belal Hossain Takaomi Arai, Takaomi Arai, M. Belal Hossain Takaomi Arai, Takaomi Arai, Norhayati Ngah, Takaomi Arai, M. Belal Hossain Norhayati Ngah, Norhayati Ngah, Takaomi Arai, Takaomi Arai, M. Belal Hossain Takaomi Arai, Takaomi Arai, Takaomi Arai, M. Belal Hossain

Summary

Researchers assessed microplastic contamination across five types of commercial fish ponds in Bangladesh, finding an average of about 520 particles per cubic meter of water. Pangas ponds had the highest contamination levels, and polyethylene and polypropylene were the most common plastic types. The study raises concerns about ecological risks to farmed fish in one of the world's leading aquaculture nations.

Polymers

PE PET PP PS

Models

Fish other

Study Type Environmental

Bangladesh, a leading fish-producing nation, faces limited understanding of the ecological risks posed by microplastic (MP) pollution in its freshwater aquaculture. This study evaluated MP load, polymer-specific toxicity, and cumulative ecological risks across species-specific ponds (Tilapia, Pangas, Indian Major Carp, Gulsha, and Koi) using an integrated multi-index assessment framework. The mean MP abundance was 520.5 ± 80.3 items/m³, with the highest concentration in Pangas Pond water (728.5 items/m³). MPs were predominantly fibers (<0.5 mm), with five polymer types, PE, PP, PET, PS, and EVA, indicating contamination from both direct sources and indirect sources. The Pollution Load Index was >1 in Pangas, Koi, and Tilapia ponds, representing substantial anthropogenic input. Polymer Hazard Index (PHI) indicated medium ecological risk, with the highest values observed in Pangas and Koi ponds due to the presence of more hazardous polymers, whereas Indian Major Carp ponds showed the lowest PHI. The Potential Ecological Risk Index (PERI) also identified Pangas ponds as the most ecologically stressed, followed by Koi. The Toxicity Index (Tim) values were highest in Pangas and Koi ponds due to the prevalence of small, fiber-shaped, dark-colored MPs, enhancing bioavailability and ingestion risk. Finally, Multi-characteristics PERI (MPERI), integrating PLI and Tim, revealed the highest ecological risk in Pangas ponds (mean: 30.62), followed by Koi and Gulsha, while Indian Major Carp ponds showed the lowest risk (mean: 19.54). Overall, the results highlighted that Pangas and Koi ponds are ecotoxicologically more vulnerable to MP pollution due to their higher contaminant loads and more hazardous particle characteristics. • Pangas ponds had the highest microplastic abundance across all pond types. • Fibers under 0.5 mm and five polymer types dominated microplastic profiles. • Pangas and Koi ponds showed highest PHI due higher proportion of hazardous polymers. • Pangas ponds ranked most toxic in PERI, TIM, and MPERI risk assessments. • Indian Major Carp ponds exhibited the lowest species-specific microplastic risk.

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