Levels, sources, and spatial distribution of heavy metals in soils from a typical coal industrial city of Tangshan, China

Sun, Lin; Guo, Dengkui; Liu, Ke; Meng, Huan; Zheng, Yi; Yuan, Fuqiang; Zhu, Guangyan

doi:10.1016/j.catena.2018.12.014

Cited by 225 publications

(105 citation statements)

References 37 publications

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“…Cr and Ni in the first principal component (PC1) was demonstrated to be derived from parent material and lithogenic sources in many studies [8,21,46]. However, as opposed to other studies [3,5,15,47], Cu in this study was not deemed to have an anthropogenic source; our results are consistent with those of Tian et al [48].…”

Section: Pc1: Cr Cu Nisupporting

confidence: 88%

“…where ADD ing , ADD inh , and ADD dermal refer to the daily doses of metal absorbed through ingestion, inhalation, and dermal contact, respectively. Equations (6)- (8) were used for the calculation of non-cancer risks, whereas for carcinogens, the risks were calculated by the weighted average of resident exposure in children and adults, respectively, i.e., the lifetime average daily dose [40]. Calculation of the lifetime average daily dose of carcinogens entering the human body through three different paths are presented by Equations (9)-(11):…”

Section: Heathy Risk Assessmentmentioning

confidence: 99%

“…During the production activities of the steel plants, Zn pollutes the soil nearby with the emission of aerosol and dust [50]. In their respective studies, Shen [51] and Sun [8] also concluded that industrial practices would cause Zn pollution in the nearby soil. In addition, according to Tian's research, the total As emission from coal-fired power plants nationwide reached 550 tons in 2007 [52].…”

Section: Pc2: As Znmentioning

confidence: 99%

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Pollution, Sources and Human Health Risk Assessment of Potentially Toxic Elements in Different Land Use Types under the Background of Industrial Cities

et al. 2020

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Residents in industrial cities may be exposed to potentially toxic elements (PTEs) in soil that increase chronic disease risks. In this study, six types of PTEs (Zn, As, Cr, Ni, Cu, and Pb) in 112 surface soil samples from three land use types—industrial land, residential land, and farmland—in Tonghua City, Jilin Province were measured. The geological accumulation index and pollution load index were calculated to assess the pollution level of metal. Meanwhile, the potential ecological risk index, hazard index, and carcinogenic risk were calculated to assess the environmental risks. The spatial distribution map was determined by the ordinary kriging method, and the sources of PTEs were identified by factor analysis and cluster analysis. The average concentrations of Zn, As, Cr, Ni, Cu, and Pb were 266.57, 15.72, 72.41, 15.04, 20.52, and 16.30 mg/kg, respectively. The results of the geological accumulation index demonstrated the following: Zn pollution was present in all three land use types, As pollution in industrial land cannot be neglected, Cr pollution in farmland was higher than that in the other two land use types. The pollution load index decreased in the order of industrial land > farmland > residential land. Multivariate statistical analysis divided the six PTEs into three groups by source: Zn and As both originated from industrial activities; vehicle emissions were the main source of Pb; and Ni and Cu were derived from natural parent materials. Meanwhile, Cr was found to come from a mixture of artificial and natural sources. The soil environment in the study area faced ecological risk from moderate pollution levels mainly contributed by As. PTEs did not pose a non-carcinogenic risk to humans; however, residents of the three land use types all faced estimated carcinogenic risks caused by Cr, and As in industrial land also posed high estimated carcinogenic risk to human health. The conclusion of this article provides corresponding data support to the government’s policy formulation of remediating different types of land and preventing exposure and related environmental risks.

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Section: Pc1: Cr Cu Nisupporting

confidence: 88%

Section: Heathy Risk Assessmentmentioning

confidence: 99%

Section: Pc2: As Znmentioning

confidence: 99%

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Pollution, Sources and Human Health Risk Assessment of Potentially Toxic Elements in Different Land Use Types under the Background of Industrial Cities

et al. 2020

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“…This may be due to the increased distance from the source of pollution. Same findings were reported by Sun et al (2019) when assessing the level, source and distribution of heavy metals from a typical coal industrial city of Tangshan China. The decrease of concentration of heavy metals in both transects suggests that the pipeline leads to the increase of heavy metals with and without oil spills.…”

Section: Discussionsupporting

confidence: 76%

Spatial distribution of heavy metals in soil with distance from Tazama pipeline through the Mikumi National Park, Tanzania

Mrimi¹,

Nyahongo²,

Vedeld³

et al. 2019

J. Soil Sci. Environ. Manage.

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A total concentration of six studied heavy metals Arsenic (As), Lead (Pb), Chromium(Cr), Mercury (Hg) Cadmium (Cd) and Copper (Cu) were measured in soil across distances from TAZAMA pipeline in transects which have incidences of oil spillage and those which have no history of oil spillage. All studied heavy metals were detected in the study area. As, Pb and Cr were detected in both transects, that is, with oils spills and those with no history of oil spillage to a distance of 0-35 m from the edge of the pipeline, with higher mean concentration in transects with oil spillage compared to those with none. From 50-200 m away from the pipeline these four metals were detected in transects with oil spillage only. Hg and Cd were detected in transects with history of oil spillage only. Cu was detected in all transects and at all ranges of distance. Concentration of studied heavy metals decreased with increased distance from the edge of the pipeline in both transects to all directions. The decrease was statistically significant in transects with oil spillage and insignificant with transects of no history of oil spillage.

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“…It is noteworthy that adding chelate to the soil may increase the solubility of heavy metal and, thereby, transferring it to the groundwater (24,25). Thereby, the role of chelate application on increasing heavy metal concentration in soil should be constantly investigated; although the concentration of heavy metals in soil is highly dependent on the soil physicochemical properties and the type and amount of contaminating element.…”

Section: Discussionmentioning

confidence: 99%

Effect of HEDTA, CDTA, and EGTA Chelates on Remediation of Pb- and Zn-Polluted Soil Using Sunflower and Canola Plants: A Case Study; Soil Around Bama Pb and Zn Mine

Baghaie

Polous

2019

Jundishapur J Health Sci

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Background: The soil heavy metal pollution caused by human activities is one of the main environmental problems. Therefore, it is necessary to use appropriate methods to remediate such soils. Objectives: The current study aimed at investigating the effect of Hydroxyl Ethylene Diamine Tetra Acetic Acid (HEDTA), Trans-1,2-Cyclohexylene Dinitrilo Tetra Acetic Acid (CDTA), and Ethylene Glycol-bis (β-Aminoethyl Ether)-N,N,N',N'-Tetra Acetic Acid (EGTA) chelates on Pb and Zn removal efficiency in a Pb and Zn contaminated soil. Methods: This research was performed as a factorial experiment in a randomized complete block design with four levels of chelate application rate (0, 1.5, 3, and 4.5 mM/kg soil), two levels of chelates application times (one or two weeks before harvesting), and plant types (sunflower or canola). At the end of the experiment, Pb and Zn concentrations in the soil and plant samples were measured and the least significant difference (LSD) test was employed to determine the differences between the means. Results: The effectiveness of studied chelates on the availability of Zn and Pb in soil was in the descending order as HEDTA > CDTA > EGTA. Application of 4.5 mM/kg soil of CDTA chelate under sunflower and canola cultivation caused a significant increase in the availability of Zn and Pb in soil compared to 1.5 mM/kg by 12.2% and 13.3%, respectively. Plant type also had a significant effect on increasing the availability of Pb and Zn in soil. Conclusions: Plant type, application rate, and chelates type are important factors on remediation of heavy metals in contaminated soil. However, the role of physicochemical properties of soil on its heavy metal availability cannot be ignored.

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Levels, sources, and spatial distribution of heavy metals in soils from a typical coal industrial city of Tangshan, China

Cited by 225 publications

References 37 publications

Pollution, Sources and Human Health Risk Assessment of Potentially Toxic Elements in Different Land Use Types under the Background of Industrial Cities

Pollution, Sources and Human Health Risk Assessment of Potentially Toxic Elements in Different Land Use Types under the Background of Industrial Cities

Spatial distribution of heavy metals in soil with distance from Tazama pipeline through the Mikumi National Park, Tanzania

Effect of HEDTA, CDTA, and EGTA Chelates on Remediation of Pb- and Zn-Polluted Soil Using Sunflower and Canola Plants: A Case Study; Soil Around Bama Pb and Zn Mine

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