Investigation of microplastic pollution in river Alaknanda stretch of Uttarakhand

Jaspal Singh Chauhan (), Deepti Semwal (), Mamta Nainwal (), Neha Badola () and Prashant Thapliyal ()
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Jaspal Singh Chauhan: H.N.B Garhwal University
Deepti Semwal: H.N.B Garhwal University
Mamta Nainwal: H.N.B Garhwal University
Neha Badola: H.N.B Garhwal University
Prashant Thapliyal: H.N.B Garhwal University

Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, 2021, vol. 23, issue 11, No 51, 16819-16833

Abstract: Abstract Microplastic pollution research is conducted at a rapid rate throughout the world. However, microplastics (MPs) research in the freshwater ecosystem especially riverine ecosystem is lacking in India. This study is the pioneer to explore the occurrence of MPs in an Indian river. For the present investigation a stretch of river Alaknanda which is a major stream of river Ganga was selected. This stretch was divided into five sampling sites from which five water samples and four sediment samples were collected. The samples were filtered, oxidized, density separated and finally studied under compound microscope and Scanning Electron Microscope. Further, Energy-Dispersive X-ray Spectrum was also conducted to analyze the elemental status of the samples. The result of this research study recorded a total of 955 MPs. Among which 566 particles of the MPs were in water samples while 389 particles were found in sediment samples. In this study threads/fibers were the dominating type, i.e., 412 particles and particle size less than 1 mm was the most abundant type of MPs. Presence of such fine size of plastic particles increases the effect of exposure and interaction of particles with aquatic organisms and possesses a bigger threat for aquatic life. Metals like sodium, potassium, aluminum, calcium, titanium and magnesium were found attached with the MPs, indicating the potential risks to the living organisms.

Keywords: Alaknanda; Heavy metals; Microplastics; Plastic; River ecosystem (search for similar items in EconPapers)
Date: 2021
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DOI: 10.1007/s10668-021-01388-y

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