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Int. J. Environ. Res. Public Health 2015, 12(11), 13956-13969; doi:10.3390/ijerph121113956

Human Health and Ecological Risk Assessment of 16 Polycyclic Aromatic Hydrocarbons in Drinking Source Water from a Large Mixed-Use Reservoir

Department of Environment, Institute of Natural Disaster Research, Northeast Normal University, Changchun 130024, China
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Academic Editor: Paul B. Tchounwou
Received: 15 August 2015 / Revised: 25 September 2015 / Accepted: 26 October 2015 / Published: 30 October 2015
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Abstract

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. View Full-Text
Keywords: water; polycyclic aromatic hydrocarbons; ecological risk assessment; human health risk assessment; PAH sources water; polycyclic aromatic hydrocarbons; ecological risk assessment; human health risk assessment; PAH sources
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MDPI and ACS Style

Sun, C.; Zhang, J.; Ma, Q.; Chen, Y. Human Health and Ecological Risk Assessment of 16 Polycyclic Aromatic Hydrocarbons in Drinking Source Water from a Large Mixed-Use Reservoir. Int. J. Environ. Res. Public Health 2015, 12, 13956-13969.

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