全球智库信息集成服务系统(G2TT): Atmospheric deposition of heavy metals (Cu, Zn, Cd and Pb) in Varanasi City, India.

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来源类型	Article
规范类型	其他
DOI	10.1007/s10661-007-9924-7
ISBN	0167-6369
	Atmospheric deposition of heavy metals (Cu, Zn, Cd and Pb) in Varanasi City, India.
	Sharma, Rajesh Kumar; Agrawal, Madhoolika; Marshall, Fiona M
发表日期	2008
出处	Environmental Monitoring and Assessment
出版者	Springer
出版年	2008
页码	269-278
语种	英语
摘要	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 sampling locations differing in traffic density and land use patterns. The results showed that the sampling locations situated in industrial or commercial areas with heavy traffic load showed significantly elevated levels of Cu, Zn and Cd deposition rate as compared to those situated in residential areas with low traffic load. The deposition rates of Cu, Zn and Cd were significantly higher in summer and winter as compared to rainy season, however, Pb deposition rate was significantly higher in rainy and summer seasons as compared to winter season. Atmospheric depositions have significantly elevated the levels of heavy metals in B. vulgaris collected during evening as compared to those collected in morning hours. The study further showed that local population has maximum exposure to Cd contamination through consumption of B. vulgaris. The present study clearly points out the urban and industrial activities of a city have potential to elevate the levels of heavy metals in the atmospheric deposits, which may consequently contaminate the food chain and thus posing health risk to the local population.
URL	http://sro.sussex.ac.uk/id/eprint/23423/
来源智库	Science Policy Research Unit (United Kingdom)
引用统计
资源类型	智库出版物
条目标识符	http://119.78.100.153/handle/2XGU8XDN/466474
推荐引用方式 GB/T 7714	Sharma, Rajesh Kumar,Agrawal, Madhoolika,Marshall, Fiona M. Atmospheric deposition of heavy metals (Cu, Zn, Cd and Pb) in Varanasi City, India.. 2008.