宝鸡长青镇铅锌厂周围灰尘中铅的污染水平与健康风险

利用X-Ray荧光光谱仪,在宝鸡长青镇铅锌厂周围对灰尘中铅含量测试的基础上,采用污染指数及健康风险评价方法,对灰尘中铅的污染状况及健康风险进行分析。结果显示：宝鸡市长青镇铅锌厂周围灰尘中铅的平均含量为2 631.13 mg/kg,显著高于文献报道的其他城市街尘中铅的含量及陕西土壤背景值。污染指数评价结果表明,铅锌厂周围...

Human Health Risk Related to Pollution Level of Lead in Dust around a Lead-zinc Plant in Changqing Town,Baoji City

The concentration of Pb in dust samples collected from surrounding environment of a lead-zinc plant in Changqing Town,Baoji City was measured by X-ray fluorescence spectrometry,and the pollution index and human health risk assessment were used to assess the pollution of Pb in dust.The results show that the average concentration of Pb in dust was 2 631.13 mg/kg,it was higher than that reported in other references about urban street dust.The assessment results of lead pollution index show that the Pb pollution level in dust was different from different sites around the lead-zinc plant.Pollution of most samples was very serious.The human health risk assessment shows that contact was the main ingestion behavior.Both the exposure risk through contact ingestion and the total harmful index of children were higher than 1,which reveals that pollution of lead in dust is very harmful to children’s health.