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The adsorption of lead by soils is strongly influenced by temperature and various soil characteristics. Soil pH is one of the most important parameters influencing lead-solution and soil-surface chemistry since it affects lead speciation and the charge of soil surface groups. In general, lead adsorption is small at low pH values, and it increases with the increase in soil pH. Some investigations supported...
In the urbanization process of Guangzhou, which was characterized by highly centered economy and fast utilized resources, groundwater environment was influenced severely. High concentration of NO2- and NH4+ in groundwater concentrated in the city center, and samples with over proof NO3- distributed around the city and hilly areas, besides in the central region. Groundwater contaminations caused by...
Effects on volatile and semi-volatile organic compounds in water have been studied by comparison of three sampling methods, which were applied in typical groundwater contaminated site. The results show that depth-set and on-site technique of sampling is stable and better than both bailer sampler and peristaltic pump in gathering VOCs in water. The extent of loss on VOCs during collecting samples is...
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