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ASSESSMENT OF SEASONAL VARIATION IN HYDROCHEMICAL COMPOSITION OF GROUNDWATER IN NANGLOI BLOCK OF DELHI STATE

Article Id: ARCC638 | Page : 187 - 192
Citation :- ASSESSMENT OF SEASONAL VARIATION IN HYDROCHEMICAL COMPOSITION OF GROUNDWATER IN NANGLOI BLOCK OF DELHI STATE.Agricultural Science Digest.2012.(32):187 - 192
D.S. Gurjar, B.R. Yadav and V.K. Sharma*
Address : Division of Soil Science and Agricultural Chemistry, Indian Agricultural Research Institute, New Delhi-110 012, India

Abstract

A study was carried out to assess the seasonal variation in hydrochemical composition of groundwater in Nangloi block of Delhi State during the year 2007-08.  The groundwater samples were collected from same tube wells of randomly selected 20 villages in Nangloi block during both pre and post-monsoon seasons (May and October, 2007). Results indicated that quality of groundwater samples in terms of total soluble salts (ECiw) was in the range of 0.84-7.86 and 0.79-5.75 dS m-1 in pre and post monsoon seasons, respectively. Based on the relative dominance of major cations and anions, the groundwater was classified as Na-Mg-Ca and Cl-HCO3-SO4 type. Nitrate-nitrogen in groundwater samples during pre and post-monsoon season ranged from 1.5 to 18.8 mg L-1 and 1.5 to 18.4 mg L-1 with mean value of 6.63 and 6.54 mg L-1 and fluoride concentration ranged from 0.24 to 5.12 mg L-1 and 0.20 to 5.99 mg L-1 with mean values of 2.37 and 2.34 mg L-1, respectively.

Keywords

Groundwater Contamination Nitrate Fluoride Nangloi Delhi.

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