[Analysis of dust monitoring results of enterprises in the national mining industry in 2023]
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View abstract on PubMed
Summary
This summary is machine-generated.Mining workplaces show high dust levels, especially silica dust, exceeding limits in over 30% of positions. Targeted prevention is crucial for worker health in key regions and industries.
Area Of Science
- Occupational Health
- Environmental Science
- Industrial Hygiene
Background
- Mining industry workplaces face significant exposure risks from coal dust, silica dust, and other airborne particulates.
- Understanding current dust concentration levels is vital for effective occupational disease prevention and control strategies.
Purpose Of The Study
- To assess the concentration levels of coal dust, silica dust, and other dusts in national mining industry workplaces in 2023.
- To identify critical areas for occupational disease prevention and control within the mining sector.
Main Methods
- Analysis of dust concentrations in 7903 mining enterprises nationwide during 2023.
- Application of Kruskal-Wallis H rank sum test and Chi-square test to compare dust levels and exceedance ratios across different enterprise scales, industries, and regions.
Main Results
- Over-limit ratios for coal dust, silica dust, and other dusts were 18.80%, 30.10%, and 5.75% respectively.
- Silica dust positions with >80% free silica content showed a high exceedance ratio of 73.46%.
- Significant differences in dust concentrations and exceedance ratios were observed based on enterprise scale, industry (coal mining, non-metallic minerals), and region (Northwest, Southwest, North China).
Conclusions
- Dust concentration exceedance ratios in the mining industry remain high, posing a substantial risk to worker health.
- Enhanced supervision is required for enterprises in high-risk areas and industries to mitigate occupational hazards.
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