Determination of pesticides, nitrate and arsenic in ground water of Sindh
2010
Wahid, J.A. (Karachi Univ. (Pakistan). Inst. of Environmental Science) | Anwar, T. (PARC Southern Zone Agricultural Research Centre, Karachi (Pakistan). Pesticide Research Inst.) | Omm-E-Hany (Karachi Univ. (Pakistan). Inst. of Environmental Science) | Tahir, S. (Karachi Univ. (Pakistan). Dept. of Zoology) | Ahmad, I. (Karachi Univ. (Pakistan). M.A.H. Qadri Biological Research Centre) | Khan, M.A. | Khan, M.A.
In the present study Pesticides, Arsenic and Nitrate contents were analyzed in the ground water samples collected from the different districts of Sindh. Endosulfan was found above the MAC level (Maximum Acceptable Concentration 0.1 mug L-1 for single pesticide) and chlorpyrifos was found below the MAC level as defined by the Economic European Countries (EEC). Nitrate and arsenic contents were below the National Environmental Quality Standard (NESQS) i.e., 50mg L-1 and 10 mug L-1, respectively. A highly significant correlation of endosulfan with arsenic (r = 0.94) and nitrate (r = 0.95) was recorded followed by moderate correlation of nitrate with arsenic (r=0.52), chlorpyrifos (r=0.51). Correlation and between arsenic and chlorpyrifos was also significant (r=0.50).
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