Research Article | Published: 01 June 2001

Qualitative and quantitative estimation of algal species of Najafgarh drain in Delhi

Amita Sinha

Indian Journal of Forestry | Volume: 24 | Issue: 2 | Page No. 245-252 | 2001
DOI: https://doi.org/10.54207/bsmps1000-2001-11ETGI | Cite this article

Abstract

In the current work, study of algal diversity of Najafgarh drain, which runs through Delhi, has been undertaken. Najafgarh drain starts from Haryana and ends in Yamuna. This heavily polluted drain receives effluents from different (Agricultural, Industrial and Domestic) sources and contributes 60% of the total wastewater and 45% of the BOD (Biochemical oxygen demand) load being discharged from Delhi into the Yamuna. Five spots over the stretch 40 km. of the drain in Delhi have been selected for the analysis. Algal species were studied qualitatively and quantitatively. A total of 32 genera and 68 species were recorded. Out of the total 68 species, 6 belong to Chlorophyta division, 2 to Englenophyta division, 17 to Chrysophyta division and 43 to the Cyanophyta division. Hence, the species of Oscillatoria and Microcytis of the division Cyanophyta, followed by the Bacillariophyta division mainly dominate the drain. The result shows that the drain is excessively eutrophic (rich in organic pollution). Thus, BGA (Blue Green Algae) is mainly found here because of its high degree of tolerance.

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How to cite

Sinha, A., 2001. Qualitative and quantitative estimation of algal species of Najafgarh drain in Delhi. Indian Journal of Forestry, 24(2), pp.245-252. https://doi.org/10.54207/bsmps1000-2001-11ETGI

Publication History

Manuscript Published on 01 June 2001

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