职业与健康 ›› 2026, Vol. 42 ›› Issue (17): 2394-2398.

• 论著——环境与健康 • 上一篇    下一篇

江阴市末梢水中三卤甲烷监测分析及多途径暴露健康风险评估

张力1, 陈军1, 金宇星1, 缪国忠1, 丁新良2, 黄春华2()   

  1. 1 江阴市疾病预防控制中心江苏 江阴 214400
    2 无锡市疾病预防控制中心江苏 无锡 214001
  • 收稿日期:2025-07-07 修回日期:2025-11-27 出版日期:2026-09-01 发布日期:2026-08-14
  • 通信作者: 黄春华 E-mail:386973806@qq.com
  • 作者简介:张力,男,主治医师,主要从事环境和食品卫生工作。
  • 基金资助:
    江苏省卫生健康委预防医学课题(Ym2023009);无锡市青年科技人才托举行动(TJXD-2025-223)

Monitoring and analysis of trihalomethanes concentration in terminal tap water and health risk assessment via multi-pathway exposure in Jiangyin City

ZHANG Li1, CHEN Jun1, JIN Yuxing1, MIAO Guozhong1, DING Xinliang2, HUANG Chunhua2()   

  1. 1 Jiangyin Center for Disease Control and PreventionJiangyinJiangsu 214400, China
    2 Wuxi Center for Disease Control and PreventionWuxiJiangsu 214001, China
  • Received:2025-07-07 Revised:2025-11-27 Online:2026-09-01 Published:2026-08-14
  • Contact: HUANG Chunhua E-mail:386973806@qq.com

摘要:

目的 分析江阴市末梢水中三卤甲烷的浓度特征,并评估其多途径暴露的健康风险,为江阴市饮用水安全提供理论依据。方法 2023年4月—2025年3月,收集江阴市各个镇、街末梢水水样,检测4种三卤甲烷(三氯甲烷、二氯一溴甲烷、一氯二溴甲烷和三溴甲烷)的浓度。采用美国环境保护署(U.S. Environmental Protection Agency,USEPA)推荐的健康风险模型评估其健康风险。结果 2023年4月—2025年3月共收集末梢水样408份,三氯甲烷、二氯一溴甲烷、一氯二溴甲烷和三溴甲烷检出率分别是100.0%,99.8%,98.8%和12.5%,其合格率均为100.0%。三氯甲烷和二氯一溴甲烷总暴露致癌风险处于可接受低风险范围,一氯二溴甲烷和三溴甲烷风险可忽略。4种三卤甲烷物质非致癌风险均<1。结论 江阴市末梢水中4种三卤甲烷浓度虽然处于较低水平,但需引起关注,尤其是三氯甲烷和二氯一溴甲烷,建议纳入重点监测项目。

关键词: 生活末梢水, 监测, 三卤甲烷, 多途径暴露, 致癌风险, 非致癌风险

Abstract:

Objective To analyze the concentration characteristics of trihalomethanes(THMs) in terminal tap water in Jiangyin City and evaluate the health risks associated with multi-pathway exposure,thereby providing a theoretical basis for ensuring drinking water safety in Jiangyin City. Methods From April 2023 to March 2025,terminal water samples were collected from various towns and subdistricts in Jiangyin City,and the concentrations of four THM species-chloroform(TCM),bromodichloromethane(BDCM),dibromochloromethane(DBCM),and bromoform(TBM) were measured. Health risks were assessed using the health risk model recommended by the U.S. Environmental Protection Agency(USEPA). Results From April 2023 to March 2025,a total of 408 terminal water samples were collected. The detection rates of TCM,BDCM,DBCM,and TBM were 100.0%,99.8%,98.8%,and 12.5%,respectively,with compliance rates of 100% for all compounds. The total exposure carcinogenic risks of TCM and BDCM were within acceptable low-risk ranges,while the risks of DBCM and TBM were negligible. The non-carcinogenic risks of all four THMs were below 1. Conclusion Although the concentrations of the four THMs in terminal tap water of Jiangyin City were relatively low,continuous attention is warranted,particularly for TCM and BDCM. It is recommended to prioritize these compounds in future monitoring programs.

Key words: Terminal tap water, Monitoring, Trihalomethanes, Multi-pathway exposure, Carcinogenic risk, Non-carcinogenic risk

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