淮河流域某地区地下水污染健康风险评价
HEALTH RISK ASSESSMENT OF POLLUTION IN GROUNDWATER OF HUAIHE RIVER BASIN
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摘要: 为研究淮河流域下游某地区地下水中污染物对人体产生的潜在健康危害风险,对该地区的水质进行了监测分析,并采用美国环境保护署(U.S.EPA)推荐的健康风险评价模型对该地区地下水中污染物所引起的健康风险进行了评价.结果表明,所监测的污染物浓度都在生活饮用水卫生标准(GB 5749-2006)和地下水质量标准(GB/T 14848-93)的规定范围之内,对该地区的地下水水质无明显的影响;该地区地下水污染物的致癌风险评价表明,砷的风险值较高,超过了U.S.EPA推荐的评价标准(10-6),但是与国内已报道的其它地区的致癌风险度无明显差异;污染物对人体所产生的非致癌风险中,各采样点污染物的风险度均未超标.因此,初步认为本次监测的地下水中的污染物不会对人体健康产生明显的危害.Abstract: In order to investigate the potential health risk to human beings caused by the pollutants in groundwater from an area in Huaihe River Basin, a series of pollutants in the groundwater were analyzed. Health-based risk assessment was also performed using the model of U.S.Environmental Protection Agency. The results showed that the concentrations of all pollutants met the National Standards for Drinking Water Quality (GB 5749-2006) and the National Quality Standard for Groundwater (GB/T 14848-93). So the pollutants had no significant effect on the quality of groundwater in the region. Among the health risks caused by the carcinogens in groundwater, the main risk was brought by Arsenic. Although the risk was higher than the assessment standard recommended by U.S.EPA (10-6), it had no significant difference from the results for other regions of China. The non-carcinogenic risk indexes of all pollutants didn't exceed the acceptable range. Therefore, the monitored contaminants in the groundwater didn't cause obvious health hazards to human beings.
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Key words:
- Huaihe River Basin /
- groundwater /
- health risk /
- assessment
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