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Microplastics pollution with heavy metals in the aquaculture zone of the Chao Phraya River Estuary, Thailand

Marine Pollution Bulletin 2020 142 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 55 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

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Summary

Researchers examined microplastic pollution and associated heavy metals in the aquaculture zone of the Chao Phraya River Estuary in Thailand. They found microplastics in both sediment and surface water, with fibers being the dominant shape and polyethylene the most common polymer type. The study raises concerns about the potential for microplastics to carry heavy metal contaminants into aquaculture areas, which could affect seafood safety in the region.

Polymers

PE PP

Study Type Environmental

Microplastics have received special attention due to their potential risks to environments. However, data on microplastics in estuaries of the Southeast Asian region is still insufficient. This study investigated the abundance and characteristics of microplastics in the sediment and surface water of the Chao Phraya River Estuary, Thailand. Concentrations of heavy metals extracted from microplastics were also reported. The abundance of microplastics in surface water and sediment was 48 ± 8 items/m and 39 ± 14 items/kg, respectively. Microplastics with small sizes of 0.05-0.3 mm were predominant in all collected samples. Polypropylene and polyethylene particles were the most abundant in the surface water and sediment, respectively. Toxic metals (Cr, Cu, Ni, Pb, Cd, and Zn) were found in microplastics from surface water samples. Since Chao Phraya River Estuary is an important aquaculture zone in Thailand, the presence of microplastics in this area may severely impact on aquaculture and human health.

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