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蓝家程, 孙玉川, 胡宁, 姜勇祥, 龙家辉. 岩溶槽谷区土壤多环芳烃健康风险评价[J]. 环境化学, 2019, (9): 1973-1981. doi: 10.7524/j.issn.0254-6108.2019030601
引用本文: 蓝家程, 孙玉川, 胡宁, 姜勇祥, 龙家辉. 岩溶槽谷区土壤多环芳烃健康风险评价[J]. 环境化学, 2019, (9): 1973-1981. doi: 10.7524/j.issn.0254-6108.2019030601
shu
LAN Jiacheng, SUN Yuchuan, HU Ning, JIANG Yongxiang, LONG Jiahui. Health risk assessment of polycyclic aromatic hydrocarbons in soils of karst trough valley in Chongqing[J]. Environmental Chemistry, 2019, (9): 1973-1981. doi: 10.7524/j.issn.0254-6108.2019030601
Citation: LAN Jiacheng, SUN Yuchuan, HU Ning, JIANG Yongxiang, LONG Jiahui. Health risk assessment of polycyclic aromatic hydrocarbons in soils of karst trough valley in Chongqing[J]. Environmental Chemistry, 2019, (9): 1973-1981. doi: 10.7524/j.issn.0254-6108.2019030601
shu

岩溶槽谷区土壤多环芳烃健康风险评价

  • 1. 贵州师范大学喀斯特研究院, 贵阳, 550001;

  • 2. 贵州师范大学国家喀斯特石漠化防治工程技术研究中心, 贵阳, 550001;

  • 3. 岩溶环境重庆市重点实验室, 重庆, 400715;

  • 4. 西南大学地理科学学院, 重庆, 400715;

  • 5. 河南省新乡市地震局, 新乡, 453000;

  • 6. 贵州师范大学地理与环境科学学院, 贵阳, 550025

    • 通讯作者: 蓝家程, E-mail: lanjiacheng@gznu.edu.cn ;  孙玉川, E-mail: sunyc@swu.edu.cn ; 
  • 基金项目:

    国家自然科学基金（41761091），贵州省科学技术基金（黔科合J字[2015]2111号，黔科合基础[2017]1417），贵州师范大学2017年度学术新苗培养及创新探索专项项目（黔科合平台人才[2017]5726-27）和贵州师范大学2014年博士科研启动项目（600204）资助.

Health risk assessment of polycyclic aromatic hydrocarbons in soils of karst trough valley in Chongqing

  • 1. School of Karst Science, Guizhou Normal University, Guiyang 550001, China;

  • 2. State Engineering Technology for Karst Desertification Control, Guizhou Normal University, Guiyang, 550001, China;

  • 3. Chongqing Key Laboratory of Karst Environment, Southwest University, Chongqing, 400715, China;

  • 4. School of Geographical Sciences, Southwest University, Chongqing, 400715, China;

  • 5. Seismological Bureau of Xinxiang, Xinxiang, 453000, China;

  • 6. School of Geography & Environment Science, Guizhou Normal University, Guiyang, 550025, China

    • Corresponding authors: LAN Jiacheng, lanjiacheng@gznu.edu.cn ;  SUN Yuchuan, sunyc@swu.edu.cn ; 
  • Fund Project: Supported by Chinese Nation Nature Fund (41761091), Guizhou Province Science and Technology Fund (Qiankehe J[2015]2111, Qiankehe Foundation[2017]1417, Guizhou Normal University's Academic New Seedling Cultivation and Innovation Exploration Project in 2017 and Guizhou Normal University Doctoral Research Fund in 2014(600204).

  • 摘要: 以重庆老龙洞岩溶槽谷为例，利用BaP毒性当量浓度（BaPeq）和终生癌症风险增量模型对儿童和成人暴露于土壤PAHs的健康风险进行评价.研究结果表明，土壤中BaPeq∑16PAHs为87.5±156.6 ng·g-1，7种致癌性PAHs占了97.8%；BaPeq∑10PAHs平均值为32.9±37.4 ng·g-1，33.3%的采样点的BaPeq超过了荷兰土壤环境质量标准目标参考值（33.0 ng·g-1），表明土壤PAHs存在潜在风险；儿童和成人的终生癌症风险（ILCR）分别为1.17×10-7-7.11×10-6，1.24×10-7-7.52×10-6，平均值为8.8×10-7和9.3×10-7，总体在可接受的风险范围内，但有部分存在潜在风险；DaA和BaP产生的致癌风险占到总风险的35.2%和30.4%，是最主要的贡献组成；不同暴露途径对人群的致癌风险水平为：皮肤接触 > 经口摄入 > 呼吸吸入.经口摄入和皮肤接触对总致癌风险的贡献几乎为100%，高出呼吸吸入102-106倍，是土壤PAHs致癌风险的主要暴露途径.
    Abstract: The human health risks exposed to the PAHs in soils for children and adults were assessed using the toxic equivalent values of benzo[a]pyrene (BaPeq) and incremental lifetime cancer risks (ILCR) model in Laolongdong karst trough valley. The results showed that BaPeq∑16PAHs was 87.5±156.6 ng·g-1. The seven carcinogenic PAHs contaminants BaPeq values accounted for the vast majority of the total BaPeq, with a mean value of 97.8%. The BaPeq of 10 PAHs in the Dutch soil standard was 32.9±37.4 ng·g-1, 33.3% of soil samples in this study were higher than Dutch target value (33.0 ng·g-1), indicating potential risk of PAHs in soils. Cancer risks for children ranged from 1.17×10-7 to 7.11×10-6, with a mean value 8.8×10-7, and for adults ranged from 1.24×10-7 to 7.52×10-6, with a mean value of 9.3×10-7. Most of the cancer risks were acceptable, but some were potential risks. The cancer risks from DaA and BaP were the highest, accounted for 35.2% and 30.4% of the total cancer risks. Thus, the cancer risks from DaA and BaP were the major components of the total cancer risks. The cancer risks of PAHs for the three exposure pathways decreased as follows:dermal contacts > direct ingestion > inhalation. Cancer risks through ingestion and dermal contacts were about 102 to 106 higher than that through inhalation. Therefore, they were two most important exposure pathways and contributed almost 100% to the total cancer risk for adults and children.
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  • 收稿日期:  2019-03-06
蓝家程, 孙玉川, 胡宁, 姜勇祥, 龙家辉. 岩溶槽谷区土壤多环芳烃健康风险评价[J]. 环境化学, 2019, (9): 1973-1981. doi: 10.7524/j.issn.0254-6108.2019030601
引用本文: 蓝家程, 孙玉川, 胡宁, 姜勇祥, 龙家辉. 岩溶槽谷区土壤多环芳烃健康风险评价[J]. 环境化学, 2019, (9): 1973-1981. doi: 10.7524/j.issn.0254-6108.2019030601
shu
LAN Jiacheng, SUN Yuchuan, HU Ning, JIANG Yongxiang, LONG Jiahui. Health risk assessment of polycyclic aromatic hydrocarbons in soils of karst trough valley in Chongqing[J]. Environmental Chemistry, 2019, (9): 1973-1981. doi: 10.7524/j.issn.0254-6108.2019030601
Citation: LAN Jiacheng, SUN Yuchuan, HU Ning, JIANG Yongxiang, LONG Jiahui. Health risk assessment of polycyclic aromatic hydrocarbons in soils of karst trough valley in Chongqing[J]. Environmental Chemistry, 2019, (9): 1973-1981. doi: 10.7524/j.issn.0254-6108.2019030601
shu

岩溶槽谷区土壤多环芳烃健康风险评价

    通讯作者: 蓝家程, E-mail: lanjiacheng@gznu.edu.cn ;  孙玉川, E-mail: sunyc@swu.edu.cn ; 
  • 1. 贵州师范大学喀斯特研究院, 贵阳, 550001;
  • 2. 贵州师范大学国家喀斯特石漠化防治工程技术研究中心, 贵阳, 550001;
  • 3. 岩溶环境重庆市重点实验室, 重庆, 400715;
  • 4. 西南大学地理科学学院, 重庆, 400715;
  • 5. 河南省新乡市地震局, 新乡, 453000;
  • 6. 贵州师范大学地理与环境科学学院, 贵阳, 550025
  • 收稿日期:  2019-03-06
基金项目:

国家自然科学基金（41761091），贵州省科学技术基金（黔科合J字[2015]2111号，黔科合基础[2017]1417），贵州师范大学2017年度学术新苗培养及创新探索专项项目（黔科合平台人才[2017]5726-27）和贵州师范大学2014年博士科研启动项目（600204）资助.

摘要: 以重庆老龙洞岩溶槽谷为例，利用BaP毒性当量浓度（BaPeq）和终生癌症风险增量模型对儿童和成人暴露于土壤PAHs的健康风险进行评价.研究结果表明，土壤中BaPeq∑16PAHs为87.5±156.6 ng·g-1，7种致癌性PAHs占了97.8%；BaPeq∑10PAHs平均值为32.9±37.4 ng·g-1，33.3%的采样点的BaPeq超过了荷兰土壤环境质量标准目标参考值（33.0 ng·g-1），表明土壤PAHs存在潜在风险；儿童和成人的终生癌症风险（ILCR）分别为1.17×10-7-7.11×10-6，1.24×10-7-7.52×10-6，平均值为8.8×10-7和9.3×10-7，总体在可接受的风险范围内，但有部分存在潜在风险；DaA和BaP产生的致癌风险占到总风险的35.2%和30.4%，是最主要的贡献组成；不同暴露途径对人群的致癌风险水平为：皮肤接触 > 经口摄入 > 呼吸吸入.经口摄入和皮肤接触对总致癌风险的贡献几乎为100%，高出呼吸吸入102-106倍，是土壤PAHs致癌风险的主要暴露途径.

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