Gokul Valsan

ORCID: 0000-0002-0085-1572
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About
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Research Areas
  • Microplastics and Plastic Pollution
  • Recycling and Waste Management Techniques
  • biodegradable polymer synthesis and properties
  • Environmental Engineering and Cultural Studies
  • Wildlife-Road Interactions and Conservation
  • Coastal Management and Development
  • Antimicrobial agents and applications

Manipal Academy of Higher Education
2022-2024

Mangroves are crucial ecosystems that play a role in carbon sequestration, shoreline fortification, and provide habitats for diverse species. In developing nations like India, there is need more knowledge on the occurrence distribution of MPs mangrove forests under changing seasons. Our investigation aimed to fulfil this research gap by studying seasonal patterns microplastic within sediments Kota mangroves south-western India. The mean (± standard deviation) abundance was 1418.52 (±1404.34)...

10.1016/j.cscee.2024.100632 article EN cc-by-nc-nd Case Studies in Chemical and Environmental Engineering 2024-01-23

The current study investigates the seasonal variations in microplastic (MP) contamination, specifically those ranging size from 0.1 mm to 5 mm, within tropical mangroves of Kota, South-Western India. Mean concentrations (± standard deviation) 1.42 ± 0.92 MPs/L (post-monsoon), 0.62 0.38 (pre-monsoon), and 0.19 0.08 (monsoon) were observed. Fibres emerged as most abundant category across all samples, with a dominant fraction less than 1 mm. Fourier Transform Infrared Spectroscopy-Attenuated...

10.1016/j.rsma.2023.103323 article EN cc-by-nc-nd Regional Studies in Marine Science 2023-12-09

Microplastics have now been identified as a class of emerging pollutants and is considered threat to aquatic organisms. This baseline paper investigated the distribution, composition, potential ecological risks microplastic (MP) pollution on St. Mary's Island, revealing an average abundance 0.218 particles/L in water samples. Blue fibres white foams were primary MPs identified, fishing activities packaging main sources pollution. Six types polymers identified: low-density polyethylene...

10.1007/s10661-023-11651-6 article EN cc-by Environmental Monitoring and Assessment 2023-08-12

Rivers, surface runoff, and the wind all transport microplastics to ocean. There is a knowledge gap concerning distribution of in transitional subterranean estuaries. Here, we report presence pore water, groundwater, sea water from four locations southwest India. Pore seawater had mean MP abundances (± standard deviations) 0.75 (±0.66), 0.15 (±0.1), 0.11 (±0.07) pieces/litre, respectively. Fibres were dominant category MPs found. Fourier-transformed infrared spectroscopy revealed polymers...

10.2139/ssrn.4332426 article EN 2023-01-01
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