The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
By analysis of the spatial distribution of heavy metals in surface soil in Fuzhou, we found the soil have been contaminated in different levels, especially for contents of Pb, Zn, Cr in all the sample points far exceeded Background value in soil of Fujian Province. Some pro-sulfur and pro-iron elements have similar properties, so their variation of contents show good correlation. The features of the...
The contents and characteristics of ten heavy metals in surface sediments from Yangzonghai Lake in Yunnan, China were analyzed. Ecological risk index presented by Håkanson to assess the potential ecological risk of Yangzonghai Lake was utilized. The results showed that the average concentrations of titanium(Ti), manganese(Mn), zinc(Zn), vanadium(V), chromium(Cr), copper(Cu), nickel(Ni), cobalt(Co),...
The main objective of this study was to make a pollution regionalization of soil heavy metals in A city, an area with rapid economic development in Yangtze River Delta of China. Therefore, the spatial distribution of soil heavy metals was firstly estimated by optimal space method using 126 data points and performed using ArcGIS9.2 software. The areas of different content grade were computed by overlay...
As one of important mineral economic region in eastern China, soil heavy metal pollution has always been a hot point for research in Tongling area. This paper uses two periods' As content data of the surface soil to analyze the spatial distribution variation between different periods. It indicates that great changes of the spatial distribution of As content exist between two different periods.
Soil heavy metal pollution has increasing applied pressure on land resources with the intensive effects of local geochemistry or human activities in recent years. This investigation was conducted to understand the spatial variability of the soil heavy metal elements, to evaluate the relationship between heavy metals and their probable sources and to identify or forewarn the probable heavy metal contamination...
The upstream of Bi River is originated from the Laping Lead-zinc Mine which is the biggest one in China. Therefore, Bi River was affected by mining activities of Lanping Lead-zinc Mine, and had become a typically polluted river by heavy metals. According to the measurement on the magnetic susceptibility and heavy metal pollution in the sediments of Bi River River, the present situation of heavy metal...
Aiming at providing useful information for risk assessment of environmental pollution, soil remedy and decision making, the paper interprets the spatial variability of Cd in soil in the Tongling mining area, China, and analyzes the pollution by using a geostatistical method. The dataset of soil elements content is derived from the project of "Multi-Target Regional Geochemical Survey in Jianghuai...
In soil environmental science, local accuracy in high value area and the local singularity of contaminating elements in soil is particularly concerned, for it provides significant information for pollution assessment and analysis. Traditional geostatistics interpolation could not reflect those types of information accurately, attributing to its smoothing effect. In this paper, we applied multifractal...
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...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.