Pollution Characteristics and Risk Assessment of Soil Heavy Metals in the Areas Affected by the Mining of Metal-bearing Minerals in Southwest China

2021 ◽  
Author(s):  
Jian Chen ◽  
Jianlin Zhang ◽  
Mingkai Qu ◽  
Lanfang Yang ◽  
Yongcun Zhao ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Risk Assessment ◽  
Southwest China ◽  
Pollution Characteristics ◽  
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 Total and bioaccessible heavy metals in cabbage from major producing cities in Southwest China: health risk assessment and cytotoxicity

RSC Advances ◽  
2021 ◽  
Vol 11 (20) ◽  
pp. 12306-12314
Author(s):  
Mengying Li ◽  
Yishu Qin ◽  
Chengchen Wang ◽  
Kun Wang ◽  
Zhihua Deng ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Risk Assessment ◽  
Health Risk ◽  
Brassica Oleracea ◽  
Health Risk Assessment ◽  
Southwest China

We analyzed the total and bioaccessible concentrations of heavy metals in a popular vegetable cabbage (Brassica oleracea) from producing cities in Yunnan, Southwest China and assessed their health risk based on both bioaccessibility and cytotoxicity.

Pollution characteristics and health risk assessment of heavy metals in the vegetable bases of northwest China

2018 ◽  
Vol 642 ◽  
pp. 864-878 ◽  
Author(s):  
Rukeya Sawut ◽  
Nijat Kasim ◽  
Balati Maihemuti ◽  
Li Hu ◽  
Abdugheni Abliz ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Risk Assessment ◽  
Health Risk ◽  
Health Risk Assessment ◽  
Northwest China ◽  
Pollution Characteristics

Ecological security and health risk assessment of soil heavy metals on a village-level scale, based on different land use types

2020 ◽  
Vol 42 (10) ◽  
pp. 3393-3413
Author(s):  
Shiqi Tian ◽  
Shijie Wang ◽  
Xiaoyong Bai ◽  
Dequan Zhou ◽  
Guangjie Luo ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Risk Assessment ◽  
Land Use ◽  
Health Risk ◽  
Health Risk Assessment ◽  
Ecological Security ◽  
Soil Heavy Metals ◽  
Village Level ◽  
Land Use Types ◽  
Level Scale

Risk assessment, spatial patterns and source apportionment of soil heavy metals in a typical Chinese hickory plantation region of southeastern China

Geoderma ◽  
2020 ◽  
Vol 360 ◽  
pp. 114011 ◽  
Author(s):  
Keli Zhao ◽  
Luyao Zhang ◽  
Jiaqi Dong ◽  
Jiasen Wu ◽  
Zhengqian Ye ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Risk Assessment ◽  
Source Apportionment ◽  
Spatial Patterns ◽  
Southeastern China ◽  
Soil Heavy Metals
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