| 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 |
| atmospheric deposition of heavy metals (cu, zn, cd and pb) in varanasi city, india. | rapid growth in urbanization and industrialization in developing countries may significantly contribute in heavy metal contamination of vegetables through atmospheric depositions. in the present study, an assessment was made to investigate the spatial and seasonal variations in deposition rates of heavy metals and its contribution to contamination of palak (beta vulgaris). samples of bulk atmospheric deposits and beta vulgaris for analysis of cu, zn, cd and pb were collected from different sampl ... | 2008 | 17879134 |
| effect of air pollution on peri-urban agriculture: a case study. | peri-urban agriculture is vital for the urban populations of many developing countries. increases in both industrialization and urbanization, and associated air pollution threaten urban food production and its quality. six hour mean concentrations were monitored for so(2), no(2) and o(3) and plant responses were measured in terms of physiological characteristics, pigment, biomass and yield. parameter reductions in mung bean (vigna radiata), palak (beta vulgaris), wheat (triticum aestivum) and mu ... | 2003 | 12963293 |