Chinese soil element background value
http://www.zghjkx.com.cn/EN/Y2024/V40/I10/4522 WebRather, both background and baseline values calculated should be determined separately for each element in geologically different regions; otherwise, the limit values for contaminated soils may be lower than the natural concentrations (background levels) calculated for an extensive area (Gałuszka, Citation 2007). The factors that influence the ...
Chinese soil element background value
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WebIn the old landfill leachate, the concentration of manganese was 15.71 mg/L, which was the highest among the studied metals. The concentration of heavy metals in the soil of the old landfill was ... WebThe revised background concentrations of the soils in Beijing are proposed to be 7.09 mg/kg for As, 0.119 mg/kg for Cd, 29.8 mg/kg for Cr, 18.7 mg/kg for Cu, 26.8 mg/kg for …
WebJun 24, 2024 · The 1994 map of Chinese soil mercury distribution (Fig. 1a) was obtained from the atlas titled “The atlas of soil environmental background value in the People’s Republic of China” 1994, page … WebOct 25, 2024 · The background element is the alkaline soil elements in the background value from Chinese soil elements [ 34 ]. The enrichment factor EF was classified into …
WebApr 12, 2024 · According to the Chinese Soil Occurrence Classification, the soil type in the study area is Allitic-Udic ferrosols, according to world reference basic of soil resources, the soil type is ferric acid soil, which developed from the Quaternary laterite parent material. ... With KBr as the background value, the spectra were collected in the range ... WebJun 22, 2024 · In formula and , C n i and B i selected the average value of every single element in layer A soil of Hebei Province as the element background value 39, and the element background values of Cu, Zn ...
WebApr 11, 2024 · The pH of the original soil was 7.96, the value of organic matter was 14.82 g/kg, the value of CEC was 17.34 cmol/kg, the exchange acid was 54.30 mmol/kg and the background concentration of nickel ...
Web"soil element" in Chinese : 地盘要素 "element value" in Chinese : 元素值 "average background value" in Chinese : 背景平均值 "background color value" in Chinese : 背 … philips pube shaverWebDec 3, 2024 · The background value is defined as the normal concentration of an element in an unpolluted natural environment, the basis for evaluating the pollution degree and ecological risk of a particular element in the soil and sediment (Fukue et al. 2006; de Paula Filho et al. 2015). trw ms3264WebDec 15, 2024 · The research on the soil’s geochemical background value and reference value is an important basic work in the field of geosciences. The publication of Soil Geochemical Parameters of China is an important result achieved on the basis of the China’s nation-wide multi-target regional geochemical survey and the high quality and … trw motor divisionWebDec 1, 2024 · Soil background values and evolving soil standards in China is discussed. • The UK's soil survey, background values and standards is compared to China. • … philips publishingWebAug 15, 2024 · The background values of most of the trace elements were lower than those in Chinese soil, the upper continental crust, global shales and global preindustrial … philips pta317/00 treiberWebFeb 1, 2024 · Distribution of soil element BVs. Fig. 1 shows the BV distribution of 12 elements in 20 soils in China. The average BV of these elements in 20 soils varied greatly from 0.05 mg/kg to 668.35 mg/kg, among which the most abundant element was Mn, … philips publishersWebNov 10, 2024 · The average content of Cd in some surface water sediments was 0.64 mg/kg, which exceeded the risk screening values for soil contamination of agricultural land of China and was 17.1 times the background value of soil environment in Inner Mongolia; the average content of As was 16.64 mg/kg, which exceeded the soil quality standard of … philips publishing group seattle