2021年西宁市宾馆、理发店空气中化学污染物状况及健康风险评估

    Status and health risk assessment of chemical pollutants in the air of hotels and barber shops in Xining, China, 2021

    • 摘要:
      目的 了解西宁市宾馆、理发店空气中苯、甲苯、二甲苯、氨及甲醛等化学污染物的污染状况及健康风险特征, 识别可能存在有害物质, 为西宁市公共场所卫生状况的改善与管理提供依据。
      方法 2021年对西宁市18家宾馆、9家理发店空气中苯、甲苯、二甲苯、氨及甲醛进行监测, 采用健康风险评价方法评价宾馆、理发店空气中化学污染物对从业人员的非致癌和致癌风险。
      结果 2021年西宁市宾馆、理发店空气中苯、甲苯、二甲苯、氨均未超标, 慢性非致癌效应的危害系数(hazard quotient, HQ)均低于1。甲醛致癌风险值高于1×10-4, 苯的致癌风险值略高于1×10-6
      结论 西宁市宾馆、理发店空气中氨、苯、甲苯和二甲苯暴露量未超过不良反应阈值, 非致癌风险较低; 甲醛、苯对人群具有潜在的致癌风险。

       

      Abstract:
      Objective To investigate the pollution status and health risk characteristics of benzene, toluene, xylene, ammonia and formaldehyde, in the air of hotels and barber shops in Xinng, China, identifing the possible harmful substances, and provide a basis for the improvement and management of the sanitary conditions in public places in Xining.
      Methods In 2021, chemical pollutants monitoring was performed for eighteen hotels and nine barbershops in Xining, and the non-carcinogenic and carcinogenic risks of chemical pollutants in the air of hotels and barbershops for employees were evaluated by using health risk assessment method.
      Results In 2021, the concentrations of benzene, toluene, xylene and ammonia in the air of hotels and barber shops did not exceed the national standard limit, and the values of the hazard quotient(HQ)of chronic non-carcinogenic effects were lower than 1. The carcinogenic risk value of formaldehyde was higher than 1×10-4, with that of benzene being slightly higher than 1×10-6.
      Conclusion The exposure of ammonia, benzene, toluene and xylene in the air of hotels and barber shops in Xining did not exceed the threshold of adverse reactions, and the non-carcinogenic risk is low. Formaldehyde and benzene had potential carcinogenic risks to human health.

       

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