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Article ? AI-assigned paper type based on the abstract. Classification may not be perfect — flag errors using the feedback button. Tier 2 ? Original research — experimental, observational, or case-control study. Direct primary evidence. Detection Methods Environmental Sources Sign in to save

Occurrence of microplastics in freshwater gastropods from a tropical river U-Taphao, southern Thailand

PeerJ 2023 15 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 45 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.
Siriporn Pradit, Siriporn Pradit, Siriporn Pradit, Prakrit Noppradit, Preyanuch Jitkaew, Preyanuch Jitkaew, Preyanuch Jitkaew, Kittiwara Sornplang, Preyanuch Jitkaew, Prakrit Noppradit, Preyanuch Jitkaew, Preyanuch Jitkaew, Siriporn Pradit, Siriporn Pradit, Siriporn Pradit, Siriporn Pradit, Siriporn Pradit, Siriporn Pradit, Kittiwara Sornplang, Siriporn Pradit, Siriporn Pradit, Siriporn Pradit, Prakrit Noppradit, Thongchai Nitiratsuwan, Prakrit Noppradit, Prakrit Noppradit, Prakrit Noppradit, Thongchai Nitiratsuwan Thongchai Nitiratsuwan Thongchai Nitiratsuwan Siriporn Pradit, Thongchai Nitiratsuwan Prakrit Noppradit, Prakrit Noppradit, Thongchai Nitiratsuwan, Siriporn Pradit, Thongchai Nitiratsuwan, Siriporn Pradit, Siriporn Pradit, Siriporn Pradit, Siriporn Pradit, Mathinee Yucharoen, Prakrit Noppradit, Thongchai Nitiratsuwan, Kittiwara Sornplang, Thongchai Nitiratsuwan, Prakrit Noppradit, Prakrit Noppradit, Siriporn Pradit, Siriporn Pradit, Siriporn Pradit, Siriporn Pradit, Siriporn Pradit, Kittiwara Sornplang, Siriporn Pradit, Kittiwara Sornplang, Prakrit Noppradit, Siriporn Pradit, Siriporn Pradit, Prakrit Noppradit, Thongchai Nitiratsuwan Preyanuch Jitkaew, Kittiwara Sornplang, Karnda Sengloyluan, Karnda Sengloyluan, Karnda Sengloyluan, Karnda Sengloyluan, Preyanuch Jitkaew, Thongchai Nitiratsuwan, Siriporn Pradit, Mathinee Yucharoen, Kittiwara Sornplang, Siriporn Pradit, Siriporn Pradit, Preyanuch Jitkaew, Preyanuch Jitkaew, Thongchai Nitiratsuwan, Thongchai Nitiratsuwan, Thongchai Nitiratsuwan, Karnda Sengloyluan, Karnda Sengloyluan, Karnda Sengloyluan, Kittiwara Sornplang, Preyanuch Jitkaew, Preyanuch Jitkaew, Thongchai Nitiratsuwan Thongchai Nitiratsuwan Thongchai Nitiratsuwan Thongchai Nitiratsuwan Thongchai Nitiratsuwan, Mathinee Yucharoen, Varaporn Tanrattanakul, Mathinee Yucharoen, Siriporn Pradit, Kittiwara Sornplang, Siriporn Pradit, Thongchai Nitiratsuwan Siriporn Pradit, Kittiwara Sornplang, Mathinee Yucharoen, Kittiwara Sornplang, Kittiwara Sornplang, Kittiwara Sornplang, Prakrit Noppradit, Kittiwara Sornplang, Suvit Suwanno, Kittiwara Sornplang, Kittiwara Sornplang, Suvit Suwanno, Suvit Suwanno, Varaporn Tanrattanakul, Suvit Suwanno, Prakrit Noppradit, Prakrit Noppradit, Varaporn Tanrattanakul, Varaporn Tanrattanakul, Preyanuch Jitkaew, Siriporn Pradit, Varaporn Tanrattanakul, Kittiwara Sornplang, Kittiwara Sornplang, Kittiwara Sornplang, Kittiwara Sornplang, Preyanuch Jitkaew, Kittiwara Sornplang, Kittiwara Sornplang, Thongchai Nitiratsuwan Thongchai Nitiratsuwan, Thongchai Nitiratsuwan, Thongchai Nitiratsuwan Thongchai Nitiratsuwan Thongchai Nitiratsuwan, Thongchai Nitiratsuwan, Thongchai Nitiratsuwan

Summary

This study found microplastics in freshwater gastropod snails from a tropical river in southern Thailand, with concentrations ranging from about 4 to 7 particles per individual depending on species and collection site, confirming microplastic ingestion in freshwater invertebrates in Southeast Asia.

Polymers
PP
Study Type Environmental

The MPs found were as follows: 4.76 particles/individual were found in <i>F. sumatrensis speciosa</i> upstream, 5.20 particles/individual were found in <i>F. sumatrensis speciosa</i> downstream, 7.28 particles/individual were found in <i>P. canaliculata</i> upstream, and 4.00 particles/individual were found in <i>P. canaliculata</i> downstream. It was found in the two-way ANOVA that the accumulation of MPs in gastropods was affected by species and study sites (upstream and downstream). There was a significant difference in the amount of MPs in <i>P. canaliculata</i> between upstream and downstream sites (<i>p</i> = 0.003). Fibers were the most common MPs in both species. Moreover, <i>P. canaliculata</i> upstream had the most significant amount of MPs. The smallest amount of MPs was recorded for <i>P. canaliculata</i> downstream, but there was great diversity in shape, size, and polymer type. MPs sized 500 μm<sup>-1</sup> mm were the most common in both species. Fourier transform infrared spectroscopy revealed six polymers: poly (ethylene terephthalate), polypropylene, rayon, polyethyleneimine, polyamine, and poly <b>(</b>propylene: ethylene). The occurrence of MPs in gastropods is alarming for food security in Thailand. The results of this study can be used to support baseline data on MP accumulation among freshwater gastropods.

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