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Comparison of Parametric and Non-Parametric Methods for Chlorophyll Estimation based on High-Resolution UAV Imagery
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Researchers analyzed water samples from Chennai, India — including surface water, groundwater, and bottled water — and found 66 microplastic particles total, primarily fibers and fragments. Scanning electron microscopy confirmed the presence of heavy metals (chromium, titanium, molybdenum, barium) adsorbed on the microplastic surfaces, suggesting that plastics in Chennai's water supply carry additional chemical contamination.
Microplastics as environmental pollutants affect surface water and groundwater. Surface water, groundwater and branded drinking water bottles were analysed in and around Chennai, Tamil Nadu, India. The total count of microplastics was found to be 66 particles with fibrous and fragmented shape, colours such as white, blue, green, yellow, pink and black under optical microscope. SEM-EDX-used to study morphology and elemental analysis of microplastics confirmed the presence of heavy metals such as Cr, Ti, Mo, Ba and Ru adhered to their surface. Polyethylene terephthalate and polyamide were confirmed by the presence of functional groups of the polymers by FTIR equipped with attenuated total reflectance.
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Fate and Transport of Microplastics from Water Sources
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Researchers analysed microplastics in surface water, groundwater, and bottled drinking water near Chennai, India, detecting 66 particles of fibrous and fragmented shapes across all sample types. SEM-EDX analysis confirmed the presence of heavy metals including chromium, titanium, and barium adhered to microplastic surfaces, while FTIR identified polyethylene terephthalate and polyamide as the dominant polymer types.
Microplastics distribution in freshwater lake and drinking water treatment plant: A case study
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Researchers investigated microplastic contamination in a freshwater lake in Chennai, India that serves as a drinking water source for the city. Microplastics were detected in lake water and in the treated drinking water supply, including fibers, fragments, and pellets. The findings highlight a drinking water safety concern and the inadequacy of conventional treatment for microplastic removal.
Identifying microplastic contamination in drinking water: analysis and evaluation using spectroscopic methods
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Researchers developed analytical methods to identify and quantify microplastic contamination in drinking water, evaluating extraction efficiency and detection accuracy across different water types and plastic particle sizes. The study assessed health implications based on measured plastic loads in treated water.
Investigation of microplastic pollution index in the urban surface water: A case study in west Godavari district, Andhra Pradesh, India
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Researchers found microplastics in surface water and water treatment plants in the West Godavari region of India, with common types including polypropylene and PVC. Risk assessments showed that the type of plastic polymer poses a greater health risk than the amount of microplastics present. The study estimated daily, annual, and lifetime intake levels for people using these water sources.
Microplastics, their abundance, and distribution in water and sediments in North Chennai, India: An assessment of pollution risk and human health impacts
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Researchers analyzed microplastic pollution in water and sediment samples from North Chennai, India, finding contamination at all sampling sites. Landfills, densely populated areas, and tourist spots had the highest concentrations, with pollution risk levels ranging from low to extremely high. The presence of microplastics in lake water used for drinking purposes is a concern for human health in the region.
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