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Type and Distribution of Microplastics in Beach Sediment along the Coast of the Eastern Gulf of Thailand

Journal of Marine Science and Engineering 2021 31 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.

Siriporn Pradit Siriporn Pradit Siriporn Pradit Siriporn Pradit Siriporn Pradit Siriporn Pradit Suthep Jualaong, Siriporn Pradit Siriporn Pradit Siriporn Pradit Siriporn Pradit Siriporn Pradit Suthep Jualaong, Mitila Pransilpa, Siriporn Pradit Siriporn Pradit Siriporn Pradit Siriporn Pradit Siriporn Pradit Siriporn Pradit Siriporn Pradit Prawit Towatana, Prawit Towatana, Prawit Towatana, Mitila Pransilpa, Siriporn Pradit Siriporn Pradit Prawit Towatana, Prawit Towatana, Prawit Towatana, Siriporn Pradit Siriporn Pradit Siriporn Pradit Siriporn Pradit Prawit Towatana, Siriporn Pradit Siriporn Pradit Prawit Towatana, Siriporn Pradit Siriporn Pradit Suthep Jualaong, Suthep Jualaong, Prawit Towatana, Siriporn Pradit Siriporn Pradit Siriporn Pradit Siriporn Pradit Suthep Jualaong, Prawit Towatana, Prawit Towatana, Siriporn Pradit

Summary

Researchers examined microplastic distribution in beach sediments along the eastern Gulf of Thailand across two monsoon seasons, finding up to 1,698 pieces/m2 at the most contaminated site with PET (39.6%) and polyamide (22.8%) as the dominant polymer types among 17 identified.

Polymers

PA PE PET

Study Type Environmental

In the oceans and coasts, plastic waste poses a global threat to biodiversity. This study examined the types and distribution of microplastics in beach sediment along the coast of the eastern Gulf of Thailand in March 2018 (northeast monsoon = dry season) and July 2018 (southwest monsoon = rainy season). Microplastic samples were collected from six stations including Koh Khramyai Beach (Chonburi Province), Koh Mannai Beach (Rayong Province), Chao Lao Beach (Chanthaburi Province, 3 stations), and Ploy Dang Beach (Trat Province). The results showed that the highest average abundances of microplastics in March and July were at Koh Mannai Beach (1698 pieces/m2) and Koh Khramyai Beach (799 pieces/m2), respectively. However, no microplastics were found at Ploy Dang Beach in July. According to polymer-type identification using an FTIR spectrometer, 17 polymer types were found in this study. Polyethylene terephthalate (PET = 39.6%) and polyamide (PA = 22.8%) were the polymer types found in the highest proportions in March and July, respectively. In addition, the fiber shape and transparent color of microplastics were found to be the most abundant.

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