scholarly journals Heavy Metal Contamination in Soils and Phytoaccumulation in a Manganese Mine Wasteland, South China

2008 ◽  
Vol 1 ◽  
pp. ASWR.S2041 ◽  
Author(s):  
M.S. Li ◽  
S.X. Yang
Keyword(s):  
Heavy Metal ◽  
Soil Contamination ◽  
South China ◽  
Metal Contamination ◽  
Heavy Metal Contamination ◽  
Pollution Index ◽  
Environmental Risks ◽  
Tailings Dam ◽  
Heavy Metal Concentrations ◽  
High Metal

Heavy metal contamination of minesoils is a widespread problem in China. In Pingle manganese mineland in Guangxi (south China), heavy metal concentrations in soils and dominant plants were determined, and soil contamination was assessed with pollution index (Pi) and index of geoaccumulation (I-geo). Pi showed the minesoil was heavily polluted by Cd and slightly polluted by Cr. I-geo showed a severer pollution for all metals (except for Mn) than Pi because I-geo tended to overestimate the real pollution effect of minesoil. Fresh tailings dam had both the highest Pi and I-geo among the four sites indicating a high metal contamination. All the “bio-available” fractions of the studied metals were below 5% of the totals. Dominant plants tended to accumulate higher Cd and Cr, and showed higher Mn translocation to aboveground parts. Besides the agricultural reclamation, more diverse restoration goals with lower environmental risks should be considered for the Mn mine wastelands in South China.

scholarly journals Heavy metal contamination of the Curonian Lagoon bottom sediments (Lithuanian waters area)

Baltica ◽  
2016 ◽  
Vol 29 (2) ◽  
pp. 107-120 ◽  
Author(s):  
Kęstutis Jokšas ◽  
Arūnas Galkus ◽  
Rimutė Stakėnienė
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Bottom Sediments ◽  
Metal Contamination ◽  
Heavy Metal Contamination ◽  
Pollution Index ◽  
River Delta ◽  
Curonian Lagoon ◽  
Aquatic Area ◽  
Heavy Metal Concentrations

Samples of surface (0–3 cm) bottom sediments of the Lithuanian aquatic area of the Curonian Lagoon and Nemunas River delta were taken from 41 sites in 2013 and 2014. Sediment parameters, such as the percentage of particles, concentration of organic carbon and heavy metals (Cu, Zn, Ni, Pb, Cr, Cd, and Hg), were determined. The heavy metal contamination of the surface layer of bottom sediments was determined using the Nemerov’s pollution index applied to soil. The spatial distribution of contamination indices and the dependence of contamination dynamics on sedimentation factors were analysed. It was determined that heavy metal concentrations had a tendency to increase as sediment particles became finer and as Corg concentration increased. A greater amount of pollutants got into the aquatic area of the Curonian Lagoon that was closer to the Klaipėda harbour than into other lagoon zones. The heavy metals for the integral pollution index for the Curonian Lagoon and Nemunas River delta surface bottom sediments could be arranged in the following order: Cd>Pb>Cu>Ni>Hg>Cr>Zn.

Environmental risks posed by heavy metal contamination from mine waste: Case study from northwest Iran

2018 ◽  
Vol 24 (6) ◽  
pp. 1532-1549
Author(s):  
S. Maryam Hosseini ◽  
Mana Kamranjam ◽  
Roger Brewer ◽  
Maryam Rezazadeh ◽  
Mahlagha Ghorbanli
Keyword(s):  
Heavy Metal ◽  
Metal Contamination ◽  
Heavy Metal Contamination ◽  
Mine Waste ◽  
Environmental Risks ◽  
Northwest Iran

Heavy metal contamination of urban soils and dusts in Guangzhou, South China

2012 ◽  
Vol 185 (2) ◽  
pp. 1095-1106 ◽  
Author(s):  
Quan-Ying Cai ◽  
Ce-Hui Mo ◽  
Hai-Qin Li ◽  
Huixiong Lü ◽  
Qiao-Yun Zeng ◽  
...  
Keyword(s):  
Heavy Metal ◽  
South China ◽  
Metal Contamination ◽  
Urban Soils ◽  
Heavy Metal Contamination

Assessment of nitrate and heavy metal contamination of groundwater using the heavy metal pollution index: case study of Linares, Mexico

2020 ◽  
Vol 79 (18) ◽  
Author(s):  
Héctor de León-Gómez ◽  
Miguel A. Martin del Campo-Delgado ◽  
María V. Esteller-Alberich ◽  
Fernando Velasco-Tapia ◽  
Efraín Alva-Niño ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Metal Pollution ◽  
Heavy Metal Pollution ◽  
Metal Contamination ◽  
Heavy Metal Contamination ◽  
Index Case ◽  
Pollution Index ◽  
Heavy Metal Pollution Index ◽  
Metal Pollution Index

Heavy metal contamination in a vulnerable mangrove swamp in South China

2012 ◽  
Vol 185 (7) ◽  
pp. 5775-5787 ◽  
Author(s):  
Yutao Wang ◽  
Qiu Qiu ◽  
Guorong Xin ◽  
Zhongyi Yang ◽  
Jing Zheng ◽  
...  
Keyword(s):  
Heavy Metal ◽  
South China ◽  
Metal Contamination ◽  
Heavy Metal Contamination ◽  
Mangrove Swamp

Heavy metal contamination in soils and vegetables near an e-waste processing site, south China

2011 ◽  
Vol 186 (1) ◽  
pp. 481-490 ◽  
Author(s):  
Chunling Luo ◽  
Chuanping Liu ◽  
Yan Wang ◽  
Xiang Liu ◽  
Fangbai Li ◽  
...  
Keyword(s):  
Heavy Metal ◽  
South China ◽  
Metal Contamination ◽  
Heavy Metal Contamination ◽  
Waste Processing ◽  
Processing Site

scholarly journals Heavy metal contamination of soil based on pollution, geo-accumulation indices and enrichment factor in Phan Me coal mine area, Thai Nguyen province, Vietnam

2020 ◽  
Vol 42 (2) ◽  
pp. 105-117
Author(s):  
Nguyen Van Hoang ◽  
Le Quang Dao ◽  
Dong Thu Van ◽  
Pham Lan Hoa
Keyword(s):  
Heavy Metal ◽  
Enrichment Factor ◽  
Coal Mine ◽  
Metal Contamination ◽  
Heavy Metal Contamination ◽  
Pollution Index ◽  
High Concentration ◽  
Mine Area ◽  
Accumulation And Enrichment ◽  
Geo Accumulation

Soil samples around the Phan Me coal mine area, Thai Nguyen province, Vietnam had been analyzed for Fe, Mn, Cu, Zn, As, Cd, Hg, Pb and Ni. Single pollution index, geo-accumulation index, enrichment factor have been determined and used for assessing the soil quality. In average by pollution index, the soil heavy metal pollution sequence is Cu(PI=4.2)>Cd(3.5)>Zn(3.1) >Pb(1.7)>Ni(1.3). High concentrations of Cu, Zn and Cd in the soil in the study area are thanks to geo-accumulation and enrichment of the metals in the soil. The soil is from moderately to heavily contaminated by Cu, Zn and Cd: Cu and Zn concentrations are 1.5-2.8 times higher than the ecological risk values, and Cd concentration is about 3.5 times higher than allowable limits. The high concentration of Pb is thanks to moderate geo-accumulation and enrichment of Pb, and the soil mostly has Pb concentration higher than the allowable limit in about 1.7 times. There is a sign that the soil is contaminated by Ni: 22% of the samples have Ni concentration higher than the threshold value, however, the enrichment of Ni is only deficient to minimal. The results of the assessment highlight the need for a comprehensive and detailed study program on heavy metal content in different soil resources in a wider area to identify the magnitude and details of the problem associated with heavy metal contamination for the development of a remediation plan and more effective pollution preventing measures.

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