Journal of Chemistry

Journal of Chemistry / 2009 / Article

Open Access

Volume 6 |Article ID 525707 |

Wequar Ahmad Siddiqui, Rajiv Ranjan Sharma, "Assessment of the Impact of Industrial Effluents on Groundwater Quality in Okhla Industrial Area, New Delhi, India", Journal of Chemistry, vol. 6, Article ID 525707, 6 pages, 2009.

Assessment of the Impact of Industrial Effluents on Groundwater Quality in Okhla Industrial Area, New Delhi, India

Received16 Nov 2008
Revised17 Mar 2009
Accepted08 Apr 2009


In the present study physicochemical parameters like pH, hardness, TDS, chloride, sulphate, nitrate, fluoride, DO, COD and conductivity of some important heavy metals such as iron, cobalt, cadmium, lead, mercury, chromium, selenium and arsenic were first analyzed in effluent water of Okhla industrial area phase-II and then groundwater of near by areas. Obtained values of effluent water were compared with ISI standard for effluent water discharge and groundwater values were compared with ISI and WHO drinking water standards. The result shows that discharge of untreated effluents by the industries is leading to contamination of groundwater of the surrounding areas. Lead, mercury, fluoride, TDS, sulphate was above the desirable limit in effluent water (ISI standard for effluent water discharge). Subsequent analysis of groundwater of nearby areas was rated as unacceptable for drinking because of presence of fluoride in all the samples above the desirable limit. Lead, mercury, cadmium, chloride was also detected in many samples.

Copyright © 2009 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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