首页|Assessment of internal exposure risk from metals pollution of occupational and non-occupational populations around a non-ferrous metal smelting plant
Assessment of internal exposure risk from metals pollution of occupational and non-occupational populations around a non-ferrous metal smelting plant
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Assessment of internal exposure risk from metals pollution of occupational and non-occupational populations around a non-ferrous metal smelting plant
Non-ferrous metal smelting poses significant risks to public health.Specifically,the copper smelting process releases arsenic,a semi-volatile metalloid,which poses an emerging expo-sure risk to both workers and nearby residents.To comprehensively understand the inter-nal exposure risks of metal(loid)s from copper smelting,we explored eighteen metal(loid)s and arsenic metabolites in the urine of both occupational and non-occupational popula-tions using inductively coupled plasma mass spectrometry with high-performance liquid chromatography and compared their health risks.Results showed that zinc and copper(485.38 and 14.00 pg/L),and arsenic,lead,cadmium,vanadium,tin and antimony(46.80,6.82,2.17,0.40,0.44 and 0.23 pg/L,respectively)in workers(n=179)were significantly higher compared to controls(n=168),while Zinc,tin and antimony(412.10,0.51 and 0.15 pg/L,re-spectively)of residents were significantly higher than controls.Additionally,workers had a higher monomethyl arsenic percentage(MMA％),showing lower arsenic methylation ca-pacity.Source appointment analysis identified arsenic,lead,cadmium,antimony,tin and thallium as co-exposure metal(loid)s from copper smelting,positively relating to the age of workers.The hazard index(HI)of workers exceeded 1.0,while residents and control were approximately at 1.0.Besides,all three populations had accumulated cancer risks exceed-ing 1.0 × 10-4,and arsenite(AsⅢ)was the main contributor to the variation of workers and residents.Furthermore,residents living closer to the smelting plant had higher health risks.This study reveals arsenic exposure metabolites and multiple metals as emerging contam-inants for copper smelting exposure populations,providing valuable insights for pollution control in non-ferrous metal smelting.
Arsenic metabolitesMetal(loid)sNon-ferrous metal smeltingHuman biomonitoringExposureUrine
Yingjun Wu、Mengdie Qi、Hang Yu、Guiying Li、Taicheng An
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Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health,Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control,Institute of Environmental Health and Pollution Control,Guangdong University of Technology,Guangzhou 510006,China
Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control,Key Laboratory for City Cluster Environmental Safety and Green Development,School of Environmental Science and Engineering,Guangdong University of Technology,Guangzhou
Arsenic metabolites Metal(loid)s Non-ferrous metal smelting Human biomonitoring Exposure Urine
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