Dr. Sanjay Dey
Biography
Dr. Sanjay Dey, Ph.D, B.Ed, FMERU, FMERC
Assistant Professor Department of Zoology Ananda Mohan College, Kolkata, India.
Research Interest
M.Sc, Ph.D. (University of Kalyani, Department of Zoology), B.Ed, Junior Research Fellow (CSIR) National Eligibility Test, West Bengal State Eligibility Test (WB SET) Life Sciences
Fishery, Toxicology, Ecology, Molecular biology, Biochemistry, Microbiology, Conservation Biology, Biodiversity
Ecology, Endocrinology, Parasitology, Genetics, Molecular biology, Immunology, Animal physiology
Abstract
A critical review on Indian river pollution and microplastic contamination
Abstract: Rivers are the lifeline of many village and urban peoples in India. The Ganga is a crucial river but different anthropogenic effects, especially microplastic, create a hazardous impact on dissimilar tributaries, like the Yamuna, Koshi, Alakananda rivers etc. After China, India showed the highest microplastic-contaminated pollution. The Brahmaputra river showed a 20 – 150 μm microplastic. Sewage and industrial water containing sodium, potassium, and bicarbonate hampers aquatic ecology. Research in the Kali river shows 0.001-0.024 mg/l, 0.002-0.087 mg/l, 0.01-0.34 mg/l of Cd, Cr, Pb heavy metals. Research showed that the CPI index on the Hindon river is 2.68–7.12, which shows rivers are polluted. The DO level fluctuated from 3.1 mg/L to 6.4 mg/L in the Purna river. In Sabarmati river, two types of microplastic were identified by researchers that measurement 75 micrometres (μm) to 212μm and 212μm to 4 millimeters (mm). Microplastic-contaminated river water hampers the aquatic food chain. Fish and plankton mortality is also observed in river water. The fish eaten by humans are seriously affected by different diseases. Researchers identified that bioaccumulation of polluted water and microplastic has a negative effect on human liver and kidneys.
Key Words:Hazardous, Contaminated, Heavy Metals, Plankton, Food Chain
