生态学杂志2024，Vol.43Issue(3)：869-877,9.DOI:10.13292/j.1000-4890.202403.032
贵州省典型铅锌矿区和贵阳市居民汞暴露以及健康风险评估
Mercury exposure and health risk assessment in typical lead-zinc mining areas and Guiyang City
摘要
Abstract
To assess food contamination levels of organic(MeHg)and inorganic mercury associated with mining and urban environments in Guizhou,we analyzed 503 samples from Hezhang County(lead-zinc mining area)and Guiyang.The health risk associated with dietary consumption was assessed using Monte Carlo simulations.The high-est levels of total mercury were 39 and 18 ng·g-1 in the samples from the mining area and the urban residential ar-ea,respectively.The corresponding highest measurement values for MeHg were 1.7 and 7.7 ng·g-1,respectively.The investigated foodstuffs such as rice,potatoes,chicken eggs,fish,pork did not contain significant levels of mercury contamination,with the exception of certain vegetables that frequently showed levels above the current limit standard of 10 ng·g-1.14.7％(lead/zinc mining area)and 17.7％(residential area)of vegetable samples excee-ded the limit specified in China's National Food Safety Standard(GB 2672-2017).Dietary inorganic mercury exposure was similar for food with different origins(residential area:0.031 μg·kg-1·d-1,lead-zinc mining area:0.032 μg·kg-1·d-1),while exposure to organic mercury was nearly twice greater in the urban environment(6.0 vs.3.2 ng·kg-1·d-1).In general,the average daily exposure to inorganic mercury and MeHg was lower than the provisional weekly tolerable intake(PTWI)of 4 μg·kg-1·week-1 for IHg by WHO/JECFA and the reference dose(RfD)of 0.1 μg·kg-1·d-1 for MeHg established by USEPA,respectively.Hazard index in both regions was much less than unity,suggesting no obvious non-carcinogenic health risks.关键词
铅锌矿区/贵阳市居民区/无机汞/甲基汞/风险评估Key words
lead-zinc mining area/Guiyang city/inorganic mercury/methylmercury/risk assessment引用本文复制引用
王达卫,孔林,徐晓航,韩佳良,刘杰民,仇广乐..贵州省典型铅锌矿区和贵阳市居民汞暴露以及健康风险评估[J].生态学杂志,2024,43(3):869-877,9.基金项目
贵州省科技支撑项目(黔科合支撑[2020]1Y140)、贵州高层次创新型人才项目(黔科合平台人才[2020]6016)和国家自然科学基金项目(81560773,82060850,42003065)资助. （黔科合支撑[2020]1Y140）
