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Year-Round Behavior of Micro-plastics in Coastline Sand

Materiale Plastice 2021 1 citation ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count.
S. Seyfi, Homayoun Katibeh, Monireh Heshami

Summary

Researchers sampled 15 stations along the southern Caspian Sea coast across all four seasons to understand how light and heavy microplastics behave differently in coastal sand throughout the year. They found that seasonal variation significantly affects microplastic distribution patterns in beach sediments.

Polymers

This article aims to identify the behavior of light and heavy micro-plastics on the southern shore of the Caspian Sea during different seasons of the year. For this purpose, data from 15 sampling stations were gathered in four seasons, and subjected to various analyses after the samples were prepared. To separate light and heavy micro-plastics, the samples were washed with water. Analysis of TGA-DSC and FTIR imaging ‎was used to quantitatively and qualitatively identify microplastic samples and optical microscope images were used to quantify the number of particles. According to the results, the amount of light microplastics in the spring and winter is less than in the summer and autumn‎. In the spring, the highest levels of pollutants are PVC, PES, PET and PU. In the summer and autumn, the values of PE, PP, PA, PAT, PU and PVC are at a ‎relatively equal range. In the winter, most pollutants are PVC, PES, and PU.‎ In conclusion, PE, PP, PPA, and PET should be removed from the environment before they can be modified by physical and chemical processes.

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