ORIGINAL RESEARCH
Assessment of Soil Heavy Metals and Intake Risk in Typical Se-Rich Areas, Xianyushan Area, China
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School of Ecology and Environment, Anhui Normal University, Wuhu, Anhui, 241002, PR China
 
 
Submission date: 2023-12-29
 
 
Final revision date: 2024-02-06
 
 
Acceptance date: 2024-03-12
 
 
Online publication date: 2024-09-13
 
 
Publication date: 2025-01-09
 
 
Corresponding author
Xiaoguo Wu   

School of Ecology and Environment, Anhui Normal University, Wuhu, Anhui, 241002, PR China
 
 
Pol. J. Environ. Stud. 2025;34(2):1945-1955
 
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ABSTRACT
The concentrations of heavy metals (HMs) and the associated pollution risk and dietary exposure risk were assessed by collecting 154 soil samples and 6 food types from the Xianyushan area. The concentrations of Zn, Cd, and As in the soil were 1.2, 3.4, and 2.8 times the background values, and the percentages of samples exceeding the background value were 47%, 65%, and 96%, respectively. Concentrations of Cd, Cr, and As exhibited significant variations among the three land use types, which were potentially attributed to soil properties, agricultural amendments, and other contributing factors. Based on the integrated results from spatial distribution analysis, correlation analysis (CA), and principal component analysis (PCA), it can be inferred that these HMs mainly originated from soil parent materials. Pollution risk assessment indicated that Cd and As were the dominating soil pollutants. Although HM levels in different food types were lower than the limit defined in China’s national food safety standards, the total estimated daily intakes (EDIs) of Cd and As exceeded permissible tolerable daily intake (PTDI) values as well as reference doses (RfD). The target hazard quotient (THQ) values indicated that Cd, As, and Hg present lower risks from dietary intake compared to other HMs, especially, since cereals present a high risk of HM intake and need further attention.
CONFLICT OF INTEREST
The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
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