Retrospective monitoring analysis finds compliance improvements in silica dust management among industries, suggesting targeted interventions needed for high-risk areas.
Objectives To analyze the status and temporal trends of silica dust hazards in industrial and mining enterprises in Sichuan Province from 2021 to 2025, and to identify key predictors of non-compliance to support evidence-based prevention strategies. Methods A 5-year retrospective monitoring study was conducted among 1,200 enterprise monitoring cases across four key industries. A total of 3,669 posts were included. Respirable dust concentrations and compliance rates were analyzed using descriptive statistics, chi-square test, trend tests, rank-sum test, and binary logistic regression. Results The overall compliance rate for silica dust posts was 82.2%. Compliance improved significantly from 2021 to 2025 ( p < 0.05) but was lower in larger enterprises and at posts with higher free silica content (both p < 0.05). The Northwest Sichuan region and machinery industry showed the lowest compliance. Logistic regression confirmed that year, industry, economic region, enterprise scale, and free silica content were independent predictors of compliance. Conclusion Although overall compliance improved, high-risk areas remain in large enterprises, machinery and building materials industries, high free silica operations, and underdeveloped regions. Targeted risk-based interventions are urgently needed.
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Chu et al. (2026) studied this question.
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