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The trace elements distribution characteristics of 14 elements of Litchi soil samples were analysed from Zengcheng and Conghua, Guangzhou City, the main results showed that the trace elemets of two Litchi products area soil have the similar change trend in longitudinal and transverse profiles, and the similar distribution characteristics presented in Zengcheng and Conghua by comparing with Guangdong...
Solid waste is the biggest and primary pollution source in many Chinese cities such as Jinan, the capital of Shandong Province. Before the municipal sanitary landfill plant became operational in 1998, large amount of solid waste generated in Jinan was trucked to garbage disposal sites scattered in a number of suburban villages including JiuQu, Dajian Ditch, Shiliuliher, South and North Zhaner, and...
Four typical functional zones ,i.e. traffic zone, commercial zone, industry zone and residential zone were selected in Nanjing city for street dust sampling .In each zone and site, dust samples were randomly collected for five times. The total heavy metals were determined by atomic absorption spectrometry. And the concentration enrichment ratio (CER) was used to assess the degree of heavy metal contamination...
Given a description of city environment of Zhuzhou from the geochemical and geological environment, the author carried out further research on city ecological geochemistry and discussed the pollution of soil heavy metal through correlations analysis, R-cluster analysis and classified statistic of parent rock.
To reveal the spatial variability of soil heavy metals under the influence of urban expansion, Yingxing city of Jiangsu province was selected as study area. Three transects were arranged in the urban-rural ecotone. 24 surface soil samples were collected. And the contents of heavy metals including Hg, Pb, Cu and Zn were measured and analyzed. The results were as follows: (1) Hg contamination and Pb,...
This study attempts to evaluate the spatial variability characteristic of soil heavy metals in different industrial types. Therefore, concentrations of heavy metals in soils with different distances from solid, liquid and gas point source and nonpoint source were measured in Yixing, an area with intensive industrialization in Yangtze River Delta of China. The results show that 1) the enrichment of...
Apply approach of time-space transfer and take soil covered in different years as a carrier, this paper constructed the historical record of soil heavy metals (HMs) content during 1950 to 2006 in Yixing city, an area with rapid socio-economic development in Yangtze River Delta of China, and discussed the impact of socio-economic development on soil HMs content and pollution indexes with gray correlative...
In order to study the relationship of heavy metals between coconut palm (Cocos nucifera L.) and the environment, concentrations of Cd, Co, Cr, Cu, Ni, Pb, Zn, Ti and V in bark and leaf samples of cocos in Haikou and Sanya cities were analyzed. The results showed that coco barks and leaves are subject to accumulate Cd, Cu, Pb and Zn. All the studied element contents in barks and leaves in Haikou are...
A total of 44 topsoil samples (depth=0~20 cm)and 8 deep-soil samples (depth=150 ~ 200 cm) were collected from urban green space and roadside green belt in Sanya in order to : (1) get the total content of eight heavy metals (Hg, As, Cr, Ni, Cu, Pb, Cd and Zn) in urban soils in Sanya; (2) to identify the degree of heavy metal contamination by comparing with other studied cities; and (3) to determine...
A selective sequential extraction method developed by Tessier et al was used to study the speciation of heavy metal elements, Cr, Cu, Zn, and Pb, in soils taken from six different functional areas in Urumqi. The results showed that the contents of Pb, Zn, Cr, and Cu were significantly above their average background values, as high as 3.6 times, 2.3 times, 2.1 times, and 1.9 times, respectively. In...
At a stage of rapid economic development and urbanization in China, most cities are faced with such serious problems caused by environment deterioration as pollution, space press, afforestation degradation and disordering. Kunshan City, one of the most economically vigorous regions in China, has suffered a more prominent confliction between urbanization and environmental safety. In this paper, urban...
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