Accumulation of microplastics in bivalves within the Chandragiri River in South-Western India  

作　　者：Nidhin Krishna Kadalassery Radhakrishnan Jeyabalan Sangeetha Jadav Mulji Alabhai Poornendu Jayasree 

机构地区：[1]Department of Environmental Science,Central University of Kerala,Periye,Kasaragod,Kerala 671320,India

出　　处：《Anthropocene Coasts》2024年第1期59-71,共13页人新世海岸(英文)

摘　　要：The pervasive presence of microplastics within river ecosystems has a profound and often underestimated detrimental impact.These minuscule yet persistent particles have infiltrated diverse biological habitats,making their detrimental effects on aquatic life increasingly concerning worldwide.The ability of microplastics to accumulate within aquatic organisms further exacerbates this concern.Consequently,the monitoring of microplastic pollution in surface water environments has emerged as a crucial endeavour,offering invaluable insights into the extent of this ecological threat.This study delved into the contamination levels of microplastics within two bivalve species,Perna viridis and Villorita cyprinoides,along the Chandragiri River in Kerala and Karnataka,South-West India,spanning eight distinct locations.The investigation yielded a significant discovery,with a total of 667 microplastic particles extracted from 288 individuals.On average,each individual bivalve harboured approximately 2.31±0.93 microplastic items.Notably,these microplastic particles exhibited a wide range of morphological characteristics,underscoring their diverse origins and pathways into the ecosystem.Furthermore,five polymer types of microplastics were unequivocally confirmed through FTIR-ATR analysis,shedding light on the types of plastics that pose a threat to the riverine ecosystem.The findings of this study contribute to a growing body of evidence highlighting the global threat of microplastic pollution,urging international collaboration and innovative solutions to prevent further contamination and remediate existing microplastic burdens in aquatic environments.

关 键 词：Microplastic contamination Bivalves Aquatic ecosystem MORPHOTYPES POLYMERS Perna viridis Villorita cyprinoides 

分 类 号：F41[经济管理—产业经济]