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Macro-, meso- and microplastic debris in the beaches of Tuticorin district, Southeast coast of India
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Researchers surveyed eight sandy beaches along the Tuticorin district coast in southeast India for macro-, meso-, and microplastic debris. The study found microplastic concentrations ranging from 25 to 83 items per square meter, with contamination levels varying by site depending on the intensity of fishing and other human activities, confirming widespread plastic pollution along India's southeastern coastline.
This study investigates the mean concentration and characteristics of macroplastics (>2.5 cm), mesoplastics (5 mm - 2.5 cm) and microplastics (<5 mm) on eight sandy beaches along the shoreline of Tuticorin, Tamil Nadu. Prevalence of plastic litters varies among the study sites depending on the intensity of fishing and other human activities. Mean concentrations of macroplastics (1.38 ± 78 to 6.16 ± 94 items/m), mesoplastics (2 ± 0.8 to 17 ± 0.11 items/m) and microplastics (25 ± 1.58 to 83 ± 49 items/m) were estimated in respect of the polymers composing them namely PE, PP, PET, NY, PS and PVC, of which PE is the most predominant polymer. At Sites 1, 2, 3, 5 and 8 there is correlation between the intensity of fishing activity and the concentrations of macro- (p = 0.02) and microplastics (p = 0.03). Sites 4, 6 and 7 there is correlation established between the degree of recreational activity and the concentrations of meso- (p = 0.02) and microplastics (p = 0.01).
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