| heavy metal (cu, zn, cd and pb) contamination of vegetables in urban india: a case study in varanasi. | the contributions of heavy metals in selected vegetables through atmospheric deposition were quantified in an urban area of india. deposition rate of zn was recorded maximum followed by cu, cd and pb. the concentrations of zn and cu were highest in brassica oleracea, cd in abelmoschus esculentus and b. oleracea, while pb was highest in beta vulgaris. heavy metal pollution index showed that b. oleracea was maximally contaminated with heavy metals followed by a. esculentus and then b. vulgaris. th ... | 2008 | 18031880 |