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Occurrence, distribution and composition of microplastics in the sediments of South Andaman beaches
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Microplastics were found at all eight sampling stations on beaches of the South Andaman Islands, India, with an average of 414 particles per kilogram of sediment and 13 polymer types identified. Poor solid waste management, tourism, and maritime activity were identified as the main sources.
Herein, we report the prevalence of microplastics in the South Andaman beaches, India. The average microplastic abundance of the eight stations covered along the South Andaman beach was found to be 414.35 ± 87.4 particles per kilogram of beach sediment. Among the stations sampled, Kodiyaghat was found with highest microplastic abundance of 973.3 ± 76.59 particles per kilogram of beach sediment and Burmanullah recorded the lowest number of 161.7 ± 32.51. Microplastic particles of different types, size, color and shape were present in all the eight stations sampled. From the Raman spectral analysis, thirteen different types of polymers were identified. The microplastic pollution may be attributed to improper solid waste management, tourism activities and maritime activities. The present study will help in understanding the prevalence, source and pathway of microplastic particles and their affiliated risk to the fragile marine ecosystem.
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Researchers conducted a baseline survey of meso- and microplastic contamination on beaches of the Andaman and Nicobar Islands in India, finding plastic debris present even in these relatively remote tropical island ecosystems, with fragments and films being the most common types.
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A survey of six beaches on India's Puducherry coast found microplastic concentrations averaging 72 particles per 100g of sediment, with a strong positive correlation between fishing activity and microplastic abundance, but no significant relationship with recreational tourism. The findings suggest that fishing-related plastic waste is a more important local source of beach microplastic contamination than tourism activities.
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Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.