Chinese soil element background value
http://en.cgsjournals.com/article/doi/10.11720/wtyht.2024.0302 WebMar 26, 2024 · The results indicate the following: (1) The concentration of Cd and Pb in soil exceed the background value of Chinese soil elements. (2) Cd is significantly …
Chinese soil element background value
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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 ... WebDec 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. • …
WebApr 11, 2024 · Jo ur na l P re -p ro of Journal Pre-proof 41 Graphical abstract Jo ur na l P re -p ro of Journal Pre-proof 42 Highlights: ·The carbonate bedrock in southwest China has a high background value of Cd. ·Crops grown on high geological background areas have low potential risk. ·Rootstalk and fruit vegetables are recommended for cultivation ... WebApr 10, 2024 · The third group of elements consisted of As and Pb. The average concentration of As was much higher than the background value, and the pollution level and ecological risk caused by As were higher. The concentration of Pb was slightly lower than the background value (21.4 mg kg −1), and its corresponding impact was smaller. …
WebA benchmark study on soil health risks of vegetable fields in a high-cadmium background area in eastern Yunnan: LI Yang 1,2, ZHANG Nai-ming 1, WEI Fu-sheng 3: 1. College of Resources and Environment, Yunnan Agricultural University, Kunming 650201, China; 2. Yunnan Soil Fertility and Pollution Remediation Engineering Laboratory, Kunming … Webfactors affect the background value of heavy metals in soils? ... Cd and Hg constituted the five most important heavy metal contaminants in Chinese soils. 3. Soil background values and factors that affect them ‘Soil environment background values ’ (SEBV) are the concentration of elements or components in soil with little influence from ...
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 ...
WebJun 22, 2024 · The average values of Cu, Zn, Pb, Cd, and Ni are 2.92 times, 2.19 times, 6.36 times, 7.78 times, and 1.34 times of the background values of soil elements in … sharneace stewartWebThe results showed that the range of the environmental background concentrations of REE in topsoil of Shenzhen was 23.66~1246.26mg/kg, the arithmetic average value was 285.99mg/kg, which was higher than that in soil of China and Guangdong province. The top soil of Shenzhen was enriched-type of light rare earth element, and the spatial ... sharndra beauchampWebDec 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). sharnea brownhttp://www.zghjkx.com.cn/EN/Y2024/V40/I10/4522 population of northern province zambiaWebMar 1, 2014 · PDF On Mar 1, 2014, Cheng Hangxin，Li Kuo and others published Geochemical background and baseline value of chemical elements in urban soil in China Find, read and cite all the research you ... population of northern territory 2022population of northfield birminghamWebRather, 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 ... sharndy heated towel holder