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Initial examination of marine microplastics along Jaffna Peninsula’s coastal stretch in the Palk Strait, northern Sri Lanka
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Researchers conducted the first quantitative study of marine microplastic pollution along the coastal stretch of the Jaffna Peninsula in northern Sri Lanka, sampling sediments and water in the Palk Strait to characterize particle abundance, morphology, and polymer types. The study found measurable microplastic contamination across sampled sites, extending the geographic understanding of microplastic distribution in South Asian coastal waters.
Microplastics are pervasive pollutants in marine ecosystems worldwide and are increasingly recognized as a significant environmental threat. Sri Lanka, an island nation, is not exempt from this issue. While microplastic pollution has been extensively studied in the southern and western parts of Sri Lanka, limited data is available for the northern coastal regions. This first quantitative study aimed to assess the concentration of microplastics on three northern beaches: Mathagal, Point Pedro, and Charty Beach. This study reveals substantial microplastic contamination, with an average abundance of 11.06 ± 6.06 items/m. The predominant size range of microplastics was 3 to 4 mm (32%). The most common shapes identified were fragments (58%), pellets (17%), and foam (10%), with the primary colours being white (42%), blue (26%), and green (21%). Polyethylene (53%) and polypropylene (18%) were the most prevalent polymers found. Among the beaches studied, Point Pedro had the highest pellet pollution index (PPI), although all three beaches were categorized as having a "very low" PPI level (0.0 < PPI ≤ 0.5). The study highlights the significant contribution of land-based sources to microplastic pollution on these beaches and emphasizes the urgent need for ongoing research and systematic monitoring of microplastic pollution in northern Sri Lanka.
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Sampling and Analysis of Microplastics in the Coastal Environments of Sri Lanka: Estuaries of the Kelani River to Mahaoya
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Microplastics were found in both beach sediments and coastal seawater along 42 kilometers of Sri Lanka's western coastline, with polyethylene, polypropylene, and polystyrene being the most common types. The results document significant plastic contamination along the coast of a densely populated South Asian nation, raising concerns about exposure for coastal communities and marine life in the Indian Ocean region.
Evidence of microplastics pollution in coastal beaches and waters in southern Sri Lanka
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Researchers found microplastic pollution along 91 km of coastline in southern Sri Lanka, with 60% of beach sand sites and 70% of surface water sites testing positive, characterizing the polymers, shapes, and colors present across the sampled coastal environments.
Water quality and floating microplastics pollution along Southern to Northwestern Coast, Sri Lanka
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Researchers surveyed microplastic levels and water quality at 12 coastal sites along Sri Lanka's western and southern coast, finding microplastics present at all locations with fibers being the dominant form. The study also found correlations between microplastic abundance and certain water quality parameters, suggesting that areas with poorer water quality tended to have higher plastic loads. The research adds to growing evidence that South Asian coastal waters are significantly contaminated with microplastics, with potential implications for marine food webs and fishing communities.
Sampling and Analysis of Microplastics in the Coastal Environments of Sri Lanka: Estuaries of Kelani River to Mahaoya
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Microplastic abundance and types were quantified in beach sediments and seawater across nine sites along 42 km of Sri Lanka's western coast, documenting widespread contamination in estuarine and coastal environments.
Evidence of Microplastic Contamination in Surface Waters and Sediment of Kelani River Estuary
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Researchers collected water and sediment samples from nine locations along the Kelani River estuary in Sri Lanka and found evidence of microplastic contamination at all sites from headwaters to the coast. The study is one of the first to document microplastic pollution in Sri Lankan waterways, highlighting a gap in regional monitoring.
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