scholarly journals Mechanistic insights into soil heavy metals desorption by biodegradable polyelectrolyte under electric field

2021 ◽  
pp. 118277
Author(s):  
Yuchen Wang ◽  
Ang Li ◽  
Binqiao Ren ◽  
Zijian Han ◽  
Junhao Lin ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Electric Field ◽  
Soil Heavy Metals

Contamination features and health risk of soil heavy metals in China

2015 ◽  
Vol 512-513 ◽  
pp. 143-153 ◽  
Author(s):  
Haiyang Chen ◽  
Yanguo Teng ◽  
Sijin Lu ◽  
Yeyao Wang ◽  
Jinsheng Wang
Keyword(s):  
Heavy Metals ◽  
Health Risk ◽  
Soil Heavy Metals

scholarly journals Reforestation Impacted Soil Heavy Metal Fractionation and Related Risk Assessment in the Karst Area, Southwest China

Forests ◽  
2021 ◽  
Vol 12 (7) ◽  
pp. 891
Author(s):  
Qian Zhang ◽  
Guilin Han ◽  
Xingliang Xu
Keyword(s):  
Heavy Metals ◽  
Risk Assessment ◽  
Ecological Risk ◽  
Southwest China ◽  
Risk Index ◽  
Contamination Factor ◽  
Karst Area ◽  
Risk Assessment Code ◽  
Bcr Sequential Extraction ◽  
Soil Heavy Metals

Human agricultural activities have resulted in widespread land degradation and soil contamination in the karst areas. However, the effects of reforestation after agricultural abandonment on the mobility risks and contamination of heavy metals have been rarely reported. In the present study, six soil profiles were selected from cropland and abandoned cropland with reforestation in the Puding karst regions of Southwest China. The Community Bureau of Reference (BCR) sequential extraction method was used to evaluate the compositions of different chemical fractions of soil heavy metals, including Fe, Mn, Cr, Zn, Ni, and Cd. The total contents of Cr, Ni, Zn, Cd, and Mn in the croplands were significantly higher than those in the abandoned croplands. For all soils, Cr, Ni, Zn, and Fe were mainly concentrated in the residual fractions (>85%), whereas Mn and Cd were mostly observed in the non-residual fractions (>65%). The non-residual fractions of Cd, Cr, Ni, and Zn in the croplands were higher than those in the abandoned croplands. These results indicated that the content and mobility of soil heavy metals decreased after reforestation. The individual contamination factor (ICF) and risk assessment code (RAC) showed that Cd contributed to considerable contamination of karst soils. The global contamination factor (GCF) and potential ecological risk index (RI) suggested low contamination and ecological risk of the investigated heavy metals in the croplands, moreover they can be further reduced after reforestation.

scholarly journals Improved Mapping of Soil Heavy Metals Using a Vis-NIR Spectroscopy Index in an Agricultural Area of Eastern China

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 42584-42594 ◽  
Author(s):  
Jianfei Cao ◽  
Chunfang Li ◽  
Quanyuan Wu ◽  
Jianmin Qiao
Keyword(s):  
Heavy Metals ◽  
Eastern China ◽  
Nir Spectroscopy ◽  
Agricultural Area ◽  
Soil Heavy Metals

Enhancing the soil heavy metals removal efficiency by adding HPMA and PBTCA along with plant washing agents

2017 ◽  
Vol 339 ◽  
pp. 33-42 ◽  
Author(s):  
Yaru Cao ◽  
Shirong Zhang ◽  
Guiyin Wang ◽  
Ting Li ◽  
Xiaoxun Xu ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Removal Efficiency ◽  
Heavy Metals Removal ◽  
Soil Heavy Metals ◽  
Metals Removal

scholarly journals Association between soil heavy metals and fatty liver disease in men in Taiwan: a cross sectional study

BMJ Open ◽  
2017 ◽  
Vol 7 (1) ◽  
pp. e014215 ◽  
Author(s):  
Yen-Chih Lin ◽  
Ie-Bin Lian ◽  
Chew-Teng Kor ◽  
Chia-Chu Chang ◽  
Pei-Yuan Su ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Liver Disease ◽  
Fatty Liver ◽  
Fatty Liver Disease ◽  
Cross Sectional Study ◽  
Sectional Study ◽  
Cross Sectional ◽  
Soil Heavy Metals

scholarly journals Improvement of Spatial Modeling of Cr, Pb, Cd, As and Ni in Soil Based on Portable X-ray Fluorescence (PXRF) and Geostatistics: A Case Study in East China

2019 ◽  
Vol 16 (15) ◽  
pp. 2694 ◽  
Author(s):  
Xia ◽  
Hu ◽  
Shao ◽  
Xu ◽  
Zhou ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Hot Spots ◽  
Ordinary Kriging ◽  
Eastern China ◽  
Indicator Kriging ◽  
Polluted Water ◽  
X Ray ◽  
Soil Heavy Metals ◽  
Metals Pollution ◽  
Heavy Metals Pollution

To verify the feasibility of portable X-ray fluorescence (PXRF) for rapidly analyzing, assessing and improving soil heavy metals mapping, 351 samples were collected from Fuyang District, Hangzhou City, in eastern China. Ordinary kriging (OK) and co-ordinary kriging (COK) combined with PXRF measurements were used to explore spatial patterns of heavy metals content in the soil. The Getis-Ord index was calculated to discern hot spots of heavy metals. Finally, multi-variable indicator kriging was conducted to obtain a map of multi-heavy metals pollution. The results indicated Cd is the primary pollution element in Fuyang, followed by As and Pb. Application of PXRF measurements as covariates in COK improved model accuracy, especially for Pb and Cd. Heavy metals pollution hot spots were mainly detected in northern Fuyang and plains along the Fuchun River in southern Fuyang because of mining, industrial and traffic activities, and irrigation with polluted water. Area with high risk of multi-heavy metals pollution mainly distributed in plain along the Fuchun River and the eastern Fuyang. These findings certified the feasibility of using PXRF as an efficient and reliable method for soil heavy metals pollution assessment and mapping, which could contribute to reduce the cost of surveys and pollution remediation.

The Progress of Research on Soil Heavy Metals

2012 ◽  
Vol 455-456 ◽  
pp. 1285-1288
Author(s):  
Yin Ye ◽  
Zhen Yang ◽  
Xiao Peng Dang ◽  
Zi Huai Liu
Keyword(s):  
Heavy Metals ◽  
Total Mass ◽  
Research Progress ◽  
New Techniques ◽  
Soil Heavy Metals ◽  
Methods Of Determination ◽  
Morphology Analysis ◽  
Weak Points

Recently, with the developing of new techniques, more new techniques has been used in the area of soil heavy metals monitoring. This paper reviewed the methods utilized in determination of total mass and morphology analysis of soil heavy metals, summarized the current research progress on soil heavy metals and pointed out the weak points of recent works. The article also forecasted the developing tendency of the methods of determination of total mass and morphology analysis of soil heavy metals.

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