OCCUPATION AND HEALTH ›› 2026, Vol. 42 ›› Issue (7): 901-905.

• Treatise • Previous Articles     Next Articles

Occupational health risk assessment of dust in key industries in Jiangxi Province

AI Linfang1, LAI Yun1, TIAN Yue1, LIU Xiaozhen2, XIE Jinming1()   

  1. 1 Institute of Occupational Medicine of JiangxiNanchangJiangxi 330006, China
    2 School of Resources and Environmental SciencesNanchang University,NanchangJiangxi 330006, China
  • Received:2025-06-19 Revised:2025-06-23 Online:2026-04-01 Published:2026-05-14

Abstract:

Objective Based on the monitoring data of workplaces in Jiangxi Province in 2024,multimodel approaches were employed to assess the occupational health risks of silica dust,coal dust,cement dust,and welding fumes,to provide a basis for precise prevention and control. Methods A total of 2 315 employers were included,with occupational dust data collected from 495 silica dust related,88 coal dust related. The GBZ/T 298-2017 "Technical Guidelines for Occupational Health Risk Assessment of Chemical Hazardous Factors in the Workplace",semi quantitative method and the International Council on Mining and Metals(ICMM) quantitative model were used to evaluate risks in the top 5 regions/industries with the highest over-standard rates and the top 20 job positions. Results Silica dust posed the highest risk in the four dust:In regions like Nanchang and Jiujiang,and industries such as coal mining,GBZ/T 298-2017 assessed the risk as high risk,while the ICMM model upgraded it to intolerable risk;Positions involving blasting and cleaning had the highest median time-weighted average concentration(CTWA) of 1.71 mg/m3 and a 100.00% over-standard rate,all classified as intolerable risk by ICMM. Coal dust presented moderate risk:In regions like Jiujiang,GBZ/T 298-2017 rated the risk as moderate risk,while ICMM reclassified it as high risk. Cement dust and welding fumes:GBZ/T 298-2017 evaluated them as low risk,but ICMM classified both as high risk. The model discrepancy stemmed from ICMM's inclusion of multidimensional factors. Conclusion Silicon dust prevention and control should be prioritized,and ventilation,dust removal,process improvement,and personal protection should be strengthened in high-risk areas and industries such as Nanchang and Jiujiang. Continuous monitoring is required for coal dust,cement dust,and welding fumes. Integrating multiple models is recommended to optimize risk assessments and dynamically adjust prevention strategies,reducing occupational health risks such as pneumoconiosis.

Key words: Occupational health, Dust, Risk assessment, International Council on Mining and Metals model

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