Contamination assessment and health risk of heavy metals in dust from Changqing industrial park of Baoji, NW China

AbstractA total of 54 surface dust samples were gathered from Korla in NW China, and the concentrations of six heavy metal elements, such as Hg, Cd, As, Pb, Cr, and Cu, were determined by standard methods. The geostatistical analysis, multivariate statistical analysis, pollution load index (PLI), and the US EPA health risk assessment model were used to analyze the spatial distribution, pollution, and its potential health risk of heavy metals in surface dusts, and the main sources of heavy metals were also identified. The obtained results indicate that the average concentrations of As in surface dust of Korla is lower than the background values determined in Xinjiang soil, whereas the average concentrations of Hg, Cd, Pb, Cr, and Cu elements exceeded the corresponding background values by factors of 3.71, 1.87, 1.96, 1.14, and 1.29, respectively. The higher concentration of analyzed heavy metals is observed in the northeastern and northern parts in the study area. The pollution level of heavy metals decreased in the following order: Hg > Pb > Cd > Cu > Cr > As. Based on the identified concentrations, the collected dust samples are found to be heavily polluted by Hg and slightly polluted by As, and the remaining elements, Pb, Cd, Cu, and Cr, are found to be low polluted. Furthermore, the PLI values of heavy metals in surface dust vary between 0.74 and 2.74, with an average value of 1.40, at the low pollution level. In addition, As in surface dust in the study area is mainly natural source, while Hg, Cd, Cr, Cu, and Pb are mainly anthropogenic sources. Overall, the carcinogenic and noncarcinogenic health risks of the analyzed elements, instigated mainly by oral ingestion of surface dust, are found to be within the acceptable range for both children and adults. As and Cr are the main noncarcinogenic elements, whereas Cr is the major carcinogenic element among the investigated dust-bound heavy metals in Korla.

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Health risk assessment of heavy metals in agricultural soils and identification of main influencing factors in a typical industrial park in northwest China

Chemosphere ◽

10.1016/j.chemosphere.2020.126591 ◽

2020 ◽

Vol 252 ◽

pp. 126591 ◽

Cited By ~ 5

Author(s):

Rui Zhang ◽

Tao Chen ◽

Yu Zhang ◽

Yuhao Hou ◽

Qingrui Chang

Keyword(s):

Heavy Metals ◽

Risk Assessment ◽

Health Risk ◽

Influencing Factors ◽

Health Risk Assessment ◽

Agricultural Soils ◽

Northwest China ◽

Industrial Park

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Spatial distribution and contamination assessment of heavy metals in urban road dusts from Urumqi, NW China

Microchemical Journal ◽

10.1016/j.microc.2009.06.001 ◽

2009 ◽

Vol 93 (2) ◽

pp. 147-152 ◽

Cited By ~ 144

Author(s):

Binggan Wei ◽

Fengqing Jiang ◽

Xuemei Li ◽

Shuyong Mu

Keyword(s):

Heavy Metals ◽

Spatial Distribution ◽

Contamination Assessment ◽

Nw China ◽

Urban Road ◽

Road Dusts

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Contamination assessment, health risk evaluation, and source identification of heavy metals in the soil-rice system of typical agricultural regions on the southeast coast of China

Environmental Science and Pollution Research ◽

10.1007/s11356-020-11229-6 ◽

2020 ◽

Author(s):

Yanjun Ren ◽

Meng Lin ◽

Qingming Liu ◽

Zhonghao Zhang ◽

Xufeng Fei ◽

...

Keyword(s):

Heavy Metals ◽

Health Risk ◽

Source Identification ◽

Risk Evaluation ◽

Contamination Assessment ◽

Southeast Coast ◽

Agricultural Regions ◽

Health Risk Evaluation

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Study on Heavy Metal Pollution Characteristics and its Health Risk Assessment from Sludge of Sewage Treatment Plants in Industrial Parks

10.21203/rs.3.rs-34745/v1 ◽

2020 ◽

Author(s):

Xiuyan Han ◽

Tianyi Cao ◽

Tao Sun

Keyword(s):

Heavy Metals ◽

Risk Assessment ◽

Heavy Metal ◽

Health Risk ◽

Health Risk Assessment ◽

Metal Pollution ◽

Heavy Metal Pollution ◽

Sewage Treatment ◽

Industrial Park ◽

Index Method

Abstract Background In order to study the characteristics of heavy metal pollution from sludge in industrial parks and the effective methods of health risk assessment, in this paper, the pollution characteristics of eight heavy metals including Zn, Cu, Pb, Hg, Cr, Ni, As, Cd in sludge of sewage treatment plants in Nanjing MV Industrial Park were comprehensively evaluated and compared by using Nemerow Index Method, Muller Index Method and Matter element extension method. On this basis, the health risk assessment models of non-carcinogenic and carcinogenic heavy metals were constructed, and the health risks caused by four kinds of non-carcinogenic heavy metals Pb, Zn, Cu, Hg and four kinds of carcinogenic heavy metals Cr, As,Cd, Nicontained in sludge were evaluated by using the practical data of Nanjing Industrial Park. Results According to the evaluation results of heavy metal pollution characteristics in sludge of sewage treatment plants in Nanjing MV Industrial Park, the order of different pollution levels under different assessment methods is as follows: the level of the Nemerow Index Method assessment was low, the level of the Muller Index Method assessment was high, and the level of Grey Clustering Method assessment was relatively moderate. In the health risk assessment of heavy metals, the results showed that the order of effects of non-carcinogenic heavy metals on health risk ranged from large to small was: Hg, Cu, Pb, and Zn, and the health risk of non-carcinogenic heavy metal in children was much higher than that in adults. Similarly, the order of effects of carcinogenic heavy metal health risk ranged from large to small was Cd, Cr, Ni and As, and the health risk of carcinogenic heavy metal in children was slightly lower than that in adults. Conclusions It can be seen that there is a certain degree of heavy metal pollution in the sludge of the sewage treatment plant in Nanjing MV Industrial Park, which affects the environmental quality in the park and the health risks of residents. This study verifies the assessment method of the heavy metal pollution characteristics and health risk is effective, and its research results have a guiding role in the management of heavy metal pollution in the sludge of the sewage treatment plant in Nanjing MV Industrial Park. It also has significant theoretical support for the government to formulate the eco-environmental quality standards and related policies of industrial parks.

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