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Occurrence and characterization of microplastic content in the digestive system of riverine fishes

Journal of Environmental Management 2021 32 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 40 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Pouran Makhdoumi Pouran Makhdoumi Hooshyar Hossini, Meghdad Pirsaheb, Hadis Fattahi, Hadis Fattahi, Pouran Makhdoumi Pouran Makhdoumi Shohreh Heshmati, Hooshyar Hossini, Pouran Makhdoumi Meghdad Pirsaheb, Pouran Makhdoumi Meghdad Pirsaheb, Shohreh Heshmati, Meghdad Pirsaheb, Meghdad Pirsaheb, Hooshyar Hossini, Pouran Makhdoumi Hooshyar Hossini, Hooshyar Hossini, Hooshyar Hossini, Pouran Makhdoumi Hooshyar Hossini, Hooshyar Hossini, Hooshyar Hossini, Pouran Makhdoumi Pouran Makhdoumi Meghdad Pirsaheb, Hooshyar Hossini, Meghdad Pirsaheb, Hooshyar Hossini, Meghdad Pirsaheb, Meghdad Pirsaheb, Pouran Makhdoumi Meghdad Pirsaheb, Hooshyar Hossini, Pouran Makhdoumi Meghdad Pirsaheb, Hooshyar Hossini, Hooshyar Hossini, Hooshyar Hossini, Meghdad Pirsaheb, Pouran Makhdoumi Meghdad Pirsaheb, Shervin Ahmadi, Hooshyar Hossini, Meghdad Pirsaheb, Hooshyar Hossini, Meghdad Pirsaheb, Meghdad Pirsaheb, Meghdad Pirsaheb, Hooshyar Hossini, Hooshyar Hossini, Pouran Makhdoumi Hadis Fattahi, Hooshyar Hossini, Hooshyar Hossini, Hadis Fattahi, Pouran Makhdoumi Meghdad Pirsaheb, Shohreh Heshmati, Shohreh Heshmati, Hooshyar Hossini, Hooshyar Hossini, Hooshyar Hossini, Pouran Makhdoumi

Summary

Researchers found microplastics in 93.8% of riverine fish examined, with polystyrene, polyethylene, and nylon being the most common polymer types concentrated near urban and industrial areas, and small particles (0.025-1 mm) predominating across species.

Polymers

PE PS nylon

Body Systems

Digestive

Study Type Environmental

In the present study, the occurrence and characterization of microplastics (MPs) content in the fishes of the river was studied. Therefore, six sampling stations were considered for fishing. Then, the entire stomach of fishes was investigated by visual stereomicroscope, FTIR, SEM, and EDX to analyze the content of the samples, by MPs type, shape, color, and size. The most frequency of MPs was observed in Ghazanchi (S) and Kermanshah (S) stations which were close to urban and industrial areas. Most types of detected MPs included polystyrene, polyethylene, and nylon with the highest frequency observed in Luciobarbus caspius and Alburnus chalcoides fishes. Overall, the frequency of detected MPs in the caught fishes was 93.8%. Indeed, MPs with a size of 0.025-1 mm (25-1000 μm) were the most frequency of MPs in fishes. The frequency of MPs shapes was fiber (85.12%), fragment (12.32%), foam (0.77%), film (1.21%), and microbead (0.56%), respectively. The highest and lowest percentage of MPs belonged to black and green with an abundance of 63% and 2%, respectively. The result implies that lots of riverine fishes are polluted with MPs, those which can move into the food chain.

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