Spatiotemporal variations of microplastics in the surface sediments of a tropical mangrove ecosystem in south-western India
Case Studies in Chemical and Environmental Engineering2024
22 citations
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Score: 55
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Gokul Valsan,
Gokul Valsan,
Gokul Valsan,
Gokul Valsan,
Anish Kumar Warrier
Gokul Valsan,
Anish Kumar Warrier
Gokul Valsan,
M. Vasudeva,
Gokul Valsan,
Gokul Valsan,
Gokul Valsan,
Gokul Valsan,
Gokul Valsan,
M. Vasudeva,
M. Vasudeva,
Gokul Valsan,
Gokul Valsan,
Gokul Valsan,
M. Vasudeva,
Santhosh Prabhu,
Manu Martin Paul,
V. K. Unnikrishnan,
Santhosh Prabhu,
Santhosh Prabhu,
Santhosh Prabhu,
Gokul Valsan,
Gokul Valsan,
Gokul Valsan,
Gokul Valsan,
Anish Kumar Warrier
Anish Kumar Warrier
Gokul Valsan,
Anish Kumar Warrier
Anish Kumar Warrier
Anish Kumar Warrier
Anish Kumar Warrier
Anish Kumar Warrier
Anish Kumar Warrier
Anish Kumar Warrier
Manu Martin Paul,
V. K. Unnikrishnan,
M. Vasudeva,
Santhosh Prabhu,
Anish Kumar Warrier
Anish Kumar Warrier
Gokul Valsan,
Anish Kumar Warrier
Anish Kumar Warrier
Anish Kumar Warrier
Anish Kumar Warrier
Anish Kumar Warrier
Anish Kumar Warrier
Anish Kumar Warrier
Anish Kumar Warrier
Anish Kumar Warrier
Gokul Valsan,
Anish Kumar Warrier
Gokul Valsan,
Santhosh Prabhu,
Santhosh Prabhu,
Santhosh Prabhu,
Santhosh Prabhu,
Santhosh Prabhu,
Santhosh Prabhu,
Santhosh Prabhu,
V. K. Unnikrishnan,
Santhosh Prabhu,
Santhosh Prabhu,
Santhosh Prabhu,
Santhosh Prabhu,
V. K. Unnikrishnan,
M. Vasudeva,
Gokul Valsan,
Anish Kumar Warrier
V. K. Unnikrishnan,
Anish Kumar Warrier
Anish Kumar Warrier
Anish Kumar Warrier
Gokul Valsan,
M. Vasudeva,
V. K. Unnikrishnan,
Gokul Valsan,
Gokul Valsan,
Gokul Valsan,
Santhosh Prabhu,
V. K. Unnikrishnan,
V. K. Unnikrishnan,
Gokul Valsan,
Gokul Valsan,
Anish Kumar Warrier
Gokul Valsan,
V. K. Unnikrishnan,
V. K. Unnikrishnan,
V. K. Unnikrishnan,
Santhosh Prabhu,
V. K. Unnikrishnan,
Santhosh Prabhu,
V. K. Unnikrishnan,
Gokul Valsan,
V. K. Unnikrishnan,
Santhosh Prabhu,
Anish Kumar Warrier
Anish Kumar Warrier
Anish Kumar Warrier
Anish Kumar Warrier
Anish Kumar Warrier
Anish Kumar Warrier
Anish Kumar Warrier
Anish Kumar Warrier
Anish Kumar Warrier
Anish Kumar Warrier
Anish Kumar Warrier
Anish Kumar Warrier
Anish Kumar Warrier
Anish Kumar Warrier
Manu Martin Paul,
Anish Kumar Warrier
Manu Martin Paul,
Anish Kumar Warrier
Anish Kumar Warrier
Anish Kumar Warrier
Anish Kumar Warrier
Summary
Researchers studied microplastic distribution in mangrove sediments along India's southwestern coast across different seasons and found contamination present year-round. Microplastic concentrations varied seasonally, with higher levels detected during certain periods linked to monsoon runoff and human activity. The study highlights that mangrove ecosystems, which provide critical environmental services, are accumulating microplastic pollution from surrounding areas.
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 a need for more knowledge on the occurrence and distribution of MPs in mangrove forests under changing seasons. Our investigation aimed to fulfil this research gap by studying the seasonal patterns of microplastic distribution within the sediments of the Kota mangroves in south-western India. The mean (± standard deviation) microplastic abundance was 1418.52 (±1404.34) MPs/kg during the wet season and 1414.32 (±1368.65) MPs/kg during the dry season. A consistent pattern in microplastic categories was observed, with fibres being the predominant shape followed by film, fragment, and foam. Microplastics of size 0.1–0.3mm were dominant in all seasons. Fourier Transformed Infrared Spectroscopy (FTIR-ATR) and Raman Spectroscopy analyses revealed the presence of polypropylene, polyethylene, polyethylene terephthalate, and polystyrene. Energy Dispersive Spectroscopy between control and extracted samples revealed adsorption of Cd, Zn, Pb, Fe, and Ni onto the extracted microplastics. The primary contributors to the MP pollution were attributed to fishing related activities, fish meal processing industry, tourism, and local households. This study established a baseline information on the seasonal dynamics governing the distribution of microplastics in sediment of Kota mangroves.