OCCUPATION AND HEALTH ›› 2026, Vol. 42 ›› Issue (13): 1831-1835.

• Treatise—Environment and Health • Previous Articles     Next Articles

Pollution characteristics and health risk assessment of indoor PM10 and PM2.5 in various public places in Karamay City

XU Man, HUANG Lijuan, WANG Yin, SHI Haiyun, WU De, LIU Hongying()   

  1. Karamay Center for Disease Control and Prevention(Karamay Health Inspection Institute)KaramayXinjiang 834000, China
  • Received:2025-05-26 Revised:2025-08-07 Online:2026-07-01 Published:2026-07-14
  • Contact: LIU Hongying,E-mail:513162457@qq.com

Abstract:

Objective To understand the pollution characteristics and health risks of inhalable particulate matter(PM10) and fine particulate matter(PM2.5) in various public places in Karamay City,and to provide a scientific basis for formulating targeted prevention and control measures. Methods Using the stratified random sampling method,PM10 and PM2.5 monitoring was conducted in six types of public places from 2022 to 2024. The concentration levels were evaluated based on national standards,and the non-carcinogenic risk was analyzed using the hazard quotient(HQ) in the health risk assessment model. Results The median indoor concentrations of PM10 and PM2.5 were 32 and 23 μg/m3,respectively,both below the national standard limits,but significant variations were observed across different venues,with barbershops exhibiting the highest concentrations. PM2.5 exceedances were widespread,with a 51.7% exceedance rate in barbershops in 2022. Seasonal analysis revealed that particulate matter concentrations in barbershops were higher in winter than in spring,while other places showed higher concentrations in spring,which might be attributed to local climatic characteristics. PM2.5 accounted for 72.4% of PM10,and their concentrations were highly positively correlated(r=0.854,P<0.01). Health risk assessment indicated that in all six types of places,over 70% of the monitoring points had aHQ for PM2.5 exceeding 1,suggesting that workers in these environments faced elevated health risks. Conclusion Indoor PM10 and PM2.5 concentrations in public places in Karamay City have significant differences in places and seasons,which is related to the local arid climate and petroleum industry. It is necessary to strengthen PM2.5 monitoring and formulate targeted prevention and control measures.

Key words: Karamay City, Public places, Airborne particulate matter, Pollution characteristics, Health risk assessment

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