Spatial Distribution Characteristics and Source Analysis of Thallium in Soil of a Typical Smelting Enterprise Site
Received:November 09, 2023   Revised:November 20, 2023   Accepted:November 21, 2023      Published Online:March 04, 2024
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DOI:doi:10.3969/j.issn.1007-7545.2024.04.019
KeyWord:smelting enterprise; thallium; spatial distribution; source apportionment
                                
AuthorInstitution
WANG Wenhao 四川大学;四川省生态环境科学研究院
FENG Wenjuan 四川省生态环境科学研究院
DENG Siwei 四川大学;四川省生态环境科学研究院
FAN Qin 四川省生态环境科学研究院
QIAN Lei 四川省生态环境科学研究院
XU Meng 四川省生态环境科学研究院
YU Yin 四川省生态环境科学研究院
WU Yindong 四川大学
WU Yi 四川省生态环境科学研究院
TIAN Yu 四川省生态环境科学研究院
YU Jiang 四川大学
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Abstract:
      In order to study the contamination degree, risk and source of thallium (Tl) pollution in the soil of a typical smelting enterprise site, the soil of a smelting enterprise site in Sichuan was selected as the research object, Kriging interpolation, enrichment factor index (EF) and potential ecological risk index (E_r^i) were used to conduct Tl risk assessment, and the sources of heavy metals were analyzed by various analysis models. The results show that the average Tl content in the study area is 0.82 mg/kg, the EF is 2.21, predominantly indicating moderate contamination (2 storage area > transportation area. Tl concentrations in the production and storage areas rise with increase of depth. Tl content is higher in the depth of 6—9 m, while the soil Tl content is higher in the transport area. Combined with the principal component analysis, the results show that the source from smelting production activities has a great contribution to soil Tl accumulation.
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