| 湖南某地饮用水中多环芳烃的健康风险评价 |
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| 引用本文： | 常 明,王贝贝,赵秀阁,许秋瑾,段小丽.湖南某地饮用水中多环芳烃的健康风险评价[J].环境科学研究,2014,27(8):904-909. |
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| 作者姓名： | 常 明 王贝贝 赵秀阁 许秋瑾 段小丽 |
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| 作者单位： | 中国环境科学研究院, 环境基准与风险评估国家重点实验室, 北京 100012 |
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| 基金项目： | 国家环境保护公益性行业科研专项(201109064) |
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| 摘 要： | 以湖南某地区的饮用水源——某河流流经之处所涉3个乡镇的居民饮用水为研究对象,对水体中16种优控PAHs的质量浓度及其分布特征进行调查,并结合当地人群实际暴露参数进行健康风险评价. 结果表明:饮用水中ρ(∑PAHs)平均值为253.13 ng/L,分布范围为70.22～673.80 ng/L；其中,ρ(萘)和ρ(菲)最高,分别占ρ(∑PAHs)的39%和32%；毒性相对较大的苯并芘的检出率为67.5%,ρ(苯并芘)最高值为8.95 ng/L,满足GB 5749—2006《生活饮用水卫生标准》要求；研究区PAHs的致癌风险、一般人群的致癌风险均在可接受范围内,但是塘溪乡居民和其他部分特殊人群(如男性、城市地区和60～79岁人群)的致癌风险均大于10-6,值得关注；研究区PAHs暴露的非致癌风险均小于10-6,在可接受范围内.
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| 关 键 词： | PAHs 饮用水 致癌风险 非致癌风险 |
| 收稿时间： | 2013/9/18 0:00:00 |
| 修稿时间： | 2014/3/25 0:00:00 |
Health Risk Assessment of Polycyclic Aromatic Hydrocarbons in Drinking Water in a City in Hunan Province |
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| CHANG Ming,WANG Bei-bei,ZHAO Xiu-ge,XU Qiu-jin and DUAN Xiao-li.Health Risk Assessment of Polycyclic Aromatic Hydrocarbons in Drinking Water in a City in Hunan Province[J].Research of Environmental Sciences,2014,27(8):904-909. |
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| Authors: | CHANG Ming WANG Bei-bei ZHAO Xiu-ge XU Qiu-jin and DUAN Xiao-li |
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| Affiliation: | State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China |
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| Abstract: | The purpose of this research is to study the concentrations, spatial distribution and exposure factor-based human health risks of 16 priority PAHs in the drinking water of three towns supplied with drinking water from a river in Hunan Province. Drinking water samples were collected to analyze the PAHs concentrations by GC-MS. The results showed that the total PAHs were in a range of 70.22-673.80 ng/L, with the average value of 253.13 ng/L. Among the contents of PAHs, naphthalene and phenanthrene contributed most, accounting for 39% and 32%, respectively. For benzo (a) pyrene, the highest concentration was 8.95 ng/L, which meets the national standard for drinking water. The cancer risk of polycyclic aromatic hydrocarbons exposure was below 10-6. However, for the people from the town of Tangxi, and some special populations, such as men, urban residents, and people aged 60-79, the cancer risk of polycyclic aromatic hydrocarbons was higher than 10-6. The non-cancer risk of polycyclic aromatic hydrocarbons exposure was below 10-6. |
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| Keywords: | polycyclic aromatic hydrocarbons drinking water cancer risk non-cancer risk |
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