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Journal of Environmental Pathology, Toxicology and Oncology
Impact-faktor: 1.241 5-jähriger Impact-Faktor: 1.349 SJR: 0.356 SNIP: 0.613 CiteScore™: 1.61

ISSN Druckformat: 0731-8898
ISSN Online: 2162-6537

Journal of Environmental Pathology, Toxicology and Oncology

DOI: 10.1615/JEnvironPatholToxicolOncol.2013007425
pages 101-114

Algae in the Assessment of Industrial Effluents: Case Study in Southern Bengal, India

Neera Sen Sarkar
Phycology Section, Department of Botany, University of Kalyani, Kalyani, West Bengal, India
Tuli Bandyopadhyaya
West Bengal Biodiversity Board, Department of the Environment, Government of West Bengal, Paribesh Bhawan, Salt Lake City, Kolkata, West Bengal, India
Shilpa Datta
West Bengal Biodiversity Board, Department of the Environment, Government of West Bengal, Paribesh Bhawan, Salt Lake City, Kolkata, West Bengal, India
Swapna Das
Scottish Church College, Kolkata, West Bengal, India

ABSTRAKT

This article is an assessment of the diversity of scum and bloom algae encountered in different industrial effluents of Southern Bengal, India, analyzing their habitat and correlating the habitat ecology of each study site. The study was conducted during the period May 2009 to August 2010. The study sites include effluent release areas of the dairy industry, a distillery unit, the leather industry, and an herbal medicine unit. Habitat were analyzed for pH, dissolved oxygen, biological oxygen demand, salinity, alkalinity, and phosphate and nitrate levels. Correlation coefficients were calculated for habitat parameters and algae encountered, showing a significant positive correlation between the richness of dominant and subdominant species with biochemical oxygen demand and salinity and a significant negative correlation with alkalinity, phosphates, and the nitrate-to-phosphate ratio. The richness of dominant and subdominant species in the effluent discharge areas show average values of 9 and 5 in the distillery unit, 8 and 5 in the dairy industry, 7 and 8 in the leather industry, and 5 and 9 in the herbal medicine unit, respectively, with a few (ranging between 3 and 7) co-occurring species in each case. The algal groups encountered were cyanobacteria, euglenophytes, chlorophytes, and bacillariophytes, showing Palmer's Algal Pollution Index of 15 in the dairy industry, 20 in the distillery unit, 28 in the leather industry, and 8 in the herbal medicine unit.


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