期刊名称：Journal of Materials and Environmental Science
印刷版ISSN：2028-2508
出版年度：2014
卷号：5
期号：3
页码：961-966
出版社：University of Mohammed Premier Oujda
摘要：A field survey was conducted from April to June 2013 in region of Skhirat-Rabat -Morocco to evaluate the heavy metal s contaminatio n in shallow well, soils and vegetables, where wastewater are used. The evaluation was done by chemical characterization by measure of contamination levels with Iron (Fe), Copper (Cu), zinc (Zn), Manganese (Mn), Nickel (Ni), Chromium (Cr), Cadmium (Cd) and lead (Pb). Results showed that both shallow wells within line of Food and Agriculture Organization (FAO) and World Health Organization (WHO) recommendations to irrigate with the mean of 0.520, 0.014, 0.051, 0.435, 0.251, 0.286, 0.0017 and 0.0 62 mg/L. On the other hand,results indicate that there is a substantial buildup of heavy metals concentrations in canal wastewater above FAO and WHO recommendations with respectively mean of 1.32, 0.043, 0.230, 0.70, 0.67, 0.41, 0.01, and 0.093 mg/l. And when soil was analyzed results for most of the elements were observed ordinary value except for Cr, and Pb with respectively average of 276.67, and 107.19 mg/kg. Data Statistical an alysis indicated that canal wastewater obtained values were in high significance amount relatively to elements P, K, S, Zn, Cu, Fe, Mn and N i compared to shallo w well. Also sludge was found in high significance concentrations above normal soil. It is noti ced that when vegetables were analyzed; Fe, Cu, Zn, Mn, Ni and Cd showed normal value within the prescribed safety limits at all tested samples, with an average of 456.55, 16.41, 40.11, 81.76, 44.61, and 0 mg/kg. While, concentrations of Cr and Pb in all tested samples have crossed the safe limits for the prescribed safety limits with respectively mean of 14.36 and 13.78 mg/kg. Mint and leek registered maximum content of Cr, whereas high amount o f Pb in Parsley and cabbage was recorded the highest value for Ni. Thus we expect that consumption of Cd and Pb through vegetables poses substantial health risk to consumers and for this reason perhaps these products are unfit consumption. Therefore, this emphasizes the need for proper method to manage using wastewater to reduce the health risk and the extent of heavy metals contamination
