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首页> 美国卫生研究院文献>International Journal of Environmental Research and Public Health >Human Health and Ecological Risk Assessment of 16 Polycyclic Aromatic Hydrocarbons in Drinking Source Water from a Large Mixed-Use Reservoir
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Human Health and Ecological Risk Assessment of 16 Polycyclic Aromatic Hydrocarbons in Drinking Source Water from a Large Mixed-Use Reservoir

机译：大型混合水库饮用水源水中16种多环芳烃的人类健康和生态风险评估

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Reservoirs play an important role in living water supply and irrigation of farmlands, thus the water quality is closely related to public health. However, studies regarding human health and ecological risk assessment of polycyclic aromatic hydrocarbons (PAHs) in the waters of reservoirs are very few. In this study, Shitou Koumen Reservoir which supplies drinking water to 8 million people was investigated. Sixteen priority PAHs were analyzed in a total of 12 water samples. In terms of the individual PAHs, the average concentration of Fla, which was 5.66 × 10−1 μg/L, was the highest, while dibenz(a,h)anthracene which was undetected in any of the water samples was the lowest. Among three PAH compositional patterns, the concentration of low-molecular-weight and 4-ring PAHs was dominant, accounting for 94%, and the concentration of the total of 16 PAHs was elevated in constructed-wetland and fish-farming areas. According to the calculated risk quotients, little or no adverse effects were posed by individual and complex PAHs in the water on the aquatic ecosystem. In addition, the results of hazard quotients for non-carcinogenic risk also showed little or no negative impacts on the health of local residents. However, it could be concluded from the carcinogenic risk results that chrysene and complex PAHs in water might pose a potential carcinogenic risk to local residents. Moreover, the possible sources of PAHs were identified as oil spills and vehicular emissions, as well as the burning of biomass and coal.
机译：水库在生活用水和农田灌溉中起着重要作用，因此水质与公共卫生密切相关。但是，关于人类健康和水库水域中多环芳烃（PAHs）生态风险评估的研究很少。在这项研究中，调查了向800万人提供饮用水的石头古门水库。在总共12个水样中分析了16种优先PAH。就单个多环芳烃而言，Fla的平均浓度最高，为5.66×10 -1 μg/ L，而在所有苯酚中均未检出的二苯并（a，h）蒽。水样本最低。在三种PAH组成模式中，低分子量和4环PAHs占主导地位，占94％，在人工湿地和鱼类养殖区中，共有16种PAHs的浓度升高。根据计算出的风险商，水中个别和复杂的多环芳烃对水生生态系统几乎没有或没有造成不利影响。此外，非致癌风险的危险商的结果也显示出对当地居民健康的不良影响很小或没有。但是，从致癌风险结果可以得出结论，水中的苯甲醛和复杂的多环芳烃可能对当地居民构成潜在的致癌风险。此外，多环芳烃的可能来源被确定为漏油和车辆排放以及生物质和煤炭的燃烧。

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