Exposure to indoor chemical pollutants and associated health risk assessment of residents in Shijiazhuang city
BackgroundIndoor air quality directly affects people's health, especially the impact of chemical pollutants in residential indoor air on children and the elderly is more significant. ObjectiveTo understand the pollution status of common chemical pollutants in residential indoor air in Shijiazhu...
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Editorial Committee of Journal of Environmental and Occupational Medicine
2025-06-01
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| Series: | 环境与职业医学 |
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| Online Access: | http://www.jeom.org/article/cn/10.11836/JEOM24533 |
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| author | Siwei ZHANG Yishan DING Xixi DU Fengge CHEN Junwang TONG Hui MA |
| author_facet | Siwei ZHANG Yishan DING Xixi DU Fengge CHEN Junwang TONG Hui MA |
| author_sort | Siwei ZHANG |
| collection | DOAJ |
| description | BackgroundIndoor air quality directly affects people's health, especially the impact of chemical pollutants in residential indoor air on children and the elderly is more significant. ObjectiveTo understand the pollution status of common chemical pollutants in residential indoor air in Shijiazhuang, evaluate the health risks of chemical pollutants to school-age children and the elderly, and provide reference for controlling indoor pollution in residential environment. MethodsUsing stratified random sampling, a total of 60 households were selected from 2 urban areas and 1 surrounding rural area in Shijiazhuang City, specifically in July 2023 (non-heating season) and December 2023 (heating season), respectively. Relevant data was collected through on-site sampling [including CO, CO2, PM10, PM2.5, NO2, SO2, O3, ammonia, formaldehyde, benzene, toluene, xylene, total volatile organic compounds (TVOC), trichloroethylene, and tetrachloroethylene] and survey questionnaires. The pollutant concentrations were evaluated following the Standards for indoor air quality of GB/T 18883-2022, and the inhalation exposure risks of the target population were assessed based on the health risk assessment method. ResultsIn the indoor air of the urban and rural residence in Shijiazhuang City, except for CO, NO2, SO2, toluene, and xylene, which did not exceed the standard limits, other pollutants showed varying degrees of exceedance. The non-qualified rates of PM10, PM2.5, and CO2 in the urban areas were higher than those in the rural areas (P < 0.05). The seasonal difference analysis showed that the non-qualified rates of PM2.5, PM10, CO2, trichloroethylene, and tetrachloroethylene in the urban areas were higher in the heating season than in the non-heating season (P<0.05); the non-qualified rates of ammonia and formaldehyde in the rural areas increased significantly in the non-heating season(P<0.05). The health risk assessment indicated that the maximum hazard quotient (HQ) of tetrachloroethylene for the elderly exceeded 1, while the HQ values for ammonia, formaldehyde, benzene, toluene, xylene, and trichloroethylene remained below 1 for either children or the elderly. For carcinogenic risks, the median carcinogenic risk (CR) of formaldehyde for school-aged children or the elderly fell within the range of 10−6-10−4, whereas the median CR values for benzene, trichloroethylene, and tetrachloroethylene were all below 10−6.ConclusionThe primary indoor air pollutants exceeding the national standard limits in residential areas of Shijiazhuang City include CO2, PM10, TVOC, PM2.5, formaldehyde, ammonia, trichloroethylene, and tetrachloroethylene. The levels of these pollutants exhibit significant urban-rural and seasonal variations. Special attention should be paid to the non-carcinogenic risk of tetrachloroethylene to the elderly and the carcinogenic risks of formaldehyde to school-age children and the elderly. |
| format | Article |
| id | doaj-art-a93237fdf072487d87533c792a7ff8a5 |
| institution | DOAJ |
| issn | 2095-9982 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Editorial Committee of Journal of Environmental and Occupational Medicine |
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| series | 环境与职业医学 |
| spelling | doaj-art-a93237fdf072487d87533c792a7ff8a52025-08-20T02:40:17ZengEditorial Committee of Journal of Environmental and Occupational Medicine环境与职业医学2095-99822025-06-0142670671110.11836/JEOM2453324533Exposure to indoor chemical pollutants and associated health risk assessment of residents in Shijiazhuang citySiwei ZHANG0Yishan DING1Xixi DU2Fengge CHEN3Junwang TONG4Hui MA5School of Public Health, North China University of Science and Technology, Tangshan Hebei 063210, ChinaSchool of Public Health, North China University of Science and Technology, Tangshan Hebei 063210, ChinaSchool of Public Health, North China University of Science and Technology, Tangshan Hebei 063210, ChinaSchool of Public Health, North China University of Science and Technology, Tangshan Hebei 063210, ChinaSchool of Public Health, North China University of Science and Technology, Tangshan Hebei 063210, ChinaEnvironmental Health Department, Shijiazhuang Center for Disease Control and Prevention, Shijiazhuang, Hebei 050011, ChinaBackgroundIndoor air quality directly affects people's health, especially the impact of chemical pollutants in residential indoor air on children and the elderly is more significant. ObjectiveTo understand the pollution status of common chemical pollutants in residential indoor air in Shijiazhuang, evaluate the health risks of chemical pollutants to school-age children and the elderly, and provide reference for controlling indoor pollution in residential environment. MethodsUsing stratified random sampling, a total of 60 households were selected from 2 urban areas and 1 surrounding rural area in Shijiazhuang City, specifically in July 2023 (non-heating season) and December 2023 (heating season), respectively. Relevant data was collected through on-site sampling [including CO, CO2, PM10, PM2.5, NO2, SO2, O3, ammonia, formaldehyde, benzene, toluene, xylene, total volatile organic compounds (TVOC), trichloroethylene, and tetrachloroethylene] and survey questionnaires. The pollutant concentrations were evaluated following the Standards for indoor air quality of GB/T 18883-2022, and the inhalation exposure risks of the target population were assessed based on the health risk assessment method. ResultsIn the indoor air of the urban and rural residence in Shijiazhuang City, except for CO, NO2, SO2, toluene, and xylene, which did not exceed the standard limits, other pollutants showed varying degrees of exceedance. The non-qualified rates of PM10, PM2.5, and CO2 in the urban areas were higher than those in the rural areas (P < 0.05). The seasonal difference analysis showed that the non-qualified rates of PM2.5, PM10, CO2, trichloroethylene, and tetrachloroethylene in the urban areas were higher in the heating season than in the non-heating season (P<0.05); the non-qualified rates of ammonia and formaldehyde in the rural areas increased significantly in the non-heating season(P<0.05). The health risk assessment indicated that the maximum hazard quotient (HQ) of tetrachloroethylene for the elderly exceeded 1, while the HQ values for ammonia, formaldehyde, benzene, toluene, xylene, and trichloroethylene remained below 1 for either children or the elderly. For carcinogenic risks, the median carcinogenic risk (CR) of formaldehyde for school-aged children or the elderly fell within the range of 10−6-10−4, whereas the median CR values for benzene, trichloroethylene, and tetrachloroethylene were all below 10−6.ConclusionThe primary indoor air pollutants exceeding the national standard limits in residential areas of Shijiazhuang City include CO2, PM10, TVOC, PM2.5, formaldehyde, ammonia, trichloroethylene, and tetrachloroethylene. The levels of these pollutants exhibit significant urban-rural and seasonal variations. Special attention should be paid to the non-carcinogenic risk of tetrachloroethylene to the elderly and the carcinogenic risks of formaldehyde to school-age children and the elderly.http://www.jeom.org/article/cn/10.11836/JEOM24533indoor airexposureschool-age childrenelderlyhealth risk assessment |
| spellingShingle | Siwei ZHANG Yishan DING Xixi DU Fengge CHEN Junwang TONG Hui MA Exposure to indoor chemical pollutants and associated health risk assessment of residents in Shijiazhuang city 环境与职业医学 indoor air exposure school-age children elderly health risk assessment |
| title | Exposure to indoor chemical pollutants and associated health risk assessment of residents in Shijiazhuang city |
| title_full | Exposure to indoor chemical pollutants and associated health risk assessment of residents in Shijiazhuang city |
| title_fullStr | Exposure to indoor chemical pollutants and associated health risk assessment of residents in Shijiazhuang city |
| title_full_unstemmed | Exposure to indoor chemical pollutants and associated health risk assessment of residents in Shijiazhuang city |
| title_short | Exposure to indoor chemical pollutants and associated health risk assessment of residents in Shijiazhuang city |
| title_sort | exposure to indoor chemical pollutants and associated health risk assessment of residents in shijiazhuang city |
| topic | indoor air exposure school-age children elderly health risk assessment |
| url | http://www.jeom.org/article/cn/10.11836/JEOM24533 |
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