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Occurrence and Toxicological Risk Assessment of Polycyclic Aromatic Hydrocarbons and Heavy Metals in Drinking Water Resources of Southern China

Author

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  • Muting Yan

    (College of Marine Sciences, South China Agricultural University, Guangzhou 510642, China
    Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, South China Agricultural University, Guangzhou 510642, China)

  • Huayue Nie

    (College of Marine Sciences, South China Agricultural University, Guangzhou 510642, China
    Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, South China Agricultural University, Guangzhou 510642, China)

  • Wenjing Wang

    (College of Marine Sciences, South China Agricultural University, Guangzhou 510642, China
    Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, South China Agricultural University, Guangzhou 510642, China)

  • Yumei Huang

    (College of Marine Sciences, South China Agricultural University, Guangzhou 510642, China
    Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, South China Agricultural University, Guangzhou 510642, China)

  • Jun Wang

    (College of Marine Sciences, South China Agricultural University, Guangzhou 510642, China
    Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, South China Agricultural University, Guangzhou 510642, China)

Abstract

Polycyclic aromatic hydrocarbons (PAHs) and heavy metals exposure is related to a variety of diseases and cancer development, posing a great health risk to humans. In this study, water samples were collected from nine important water sources in Guangdong, Guangxi and Hainan provinces to determine the degree of PAHs and heavy metals contamination. Overall, the total contents of 16 PAHs and heavy metals were found within the permissible levels. In human health risk assessment, the benzo( a )pyrene equivalent concentration (BaP eq ) presented a much lower level than the guideline values announced by Chinese Environmental Protection Agency (CEPA) and United States Environmental Protection Agency (US EPA), demonstrating that the PAHs contamination level in drinking water was mostly acceptable. For heavy metals, the Chronic daily intake (CDI), hazard quotient (HQ) or hazard index (HI) suggested that the water quality in nine water sources was desirable and did not present a risk to human health.

Suggested Citation

  • Muting Yan & Huayue Nie & Wenjing Wang & Yumei Huang & Jun Wang, 2018. "Occurrence and Toxicological Risk Assessment of Polycyclic Aromatic Hydrocarbons and Heavy Metals in Drinking Water Resources of Southern China," IJERPH, MDPI, vol. 15(7), pages 1-12, July.
    • Handle: RePEc:gam:jijerp:v:15:y:2018:i:7:p:1422-:d:156518
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    Citations

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    Cited by:

    1. Xue Bai & Kai Song & Jian Liu & Adam Khalifa Mohamed & Chenya Mou & Dan Liu, 2019. "Health Risk Assessment of Groundwater Contaminated by Oil Pollutants Based on Numerical Modeling," IJERPH, MDPI, vol. 16(18), pages 1-20, September.
    2. Mengdie Qi & Yingjun Wu & Shu Zhang & Guiying Li & Taicheng An, 2023. "Pollution Profiles, Source Identification and Health Risk Assessment of Heavy Metals in Soil near a Non-Ferrous Metal Smelting Plant," IJERPH, MDPI, vol. 20(2), pages 1-15, January.
    3. Huiyan Tong & Zhongyue Li & Xingshuai Hu & Weiping Xu & Zhengkun Li, 2019. "Metals in Occluded Water: A New Perspective for Pollution in Drinking Water Distribution Systems," IJERPH, MDPI, vol. 16(16), pages 1-12, August.

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