Cadmium contamination of soils and crops by long term use of raw effluent, ground and canal waters in agricultural lands
2010
Hussain, A. (University of Agriculture, Faisalabad (Pakistan). Inst. of Soil and Environmental Sciences) | Murtaza, G. (University of Agriculture, Faisalabad (Pakistan). Inst. of Soil and Environmental Sciences) | Ghafoor, A. (University of Agriculture, Faisalabad (Pakistan). Inst. of Soil and Environmental Sciences) | Basra, S.M.A. (University of Agriculture, Faisalabad (Pakistan). Dept. of Crop Physiology) | Qadir, M. (International Centre for Agricultural Research in the Dry Areas, Aleppo (Syria)) | Sabir, M.
Water scarcity in agriculture sector forced farmers to use city wastewater without any regard of its quality effects on environment and resultant contamination of soils and plants, particularly with heavy metals. A survey of effluent, tube well and canal water irrigated areas in Faisalabad, Pakistan was conducted to appraise Cd concentration in these waters and soils, and its uptake by cereal and legume crops. Water, soil and plant (seeds, shoot & roots) samples were collected and analyzed for Cd concentration. Results illustrated that wastewater contained 11.0 and 3.7 times higher Cd than tube well and canal water, respectively. Location-wise the lowest Cd concentration was 0.6 mug L-1 at Bypass Samandari Road (BSR) while the highest was 1.4 mug L-1 at Malkhanwala (MW). Maximum AB-DTPA extractable Cd (0.30 mg per kg & 0.248 mg per kg) was found in soil samples collected from 0-15 cm depths at Uchkera and Ghulam Muhammad Abad (GMA), respectively. It was the lowest (0
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