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August 29, 2026Human and Ecological Risk Assessment An International Journal

Application of quantitative risk assessment for respirable dust and crystalline silica exposure among ceramic workers in Thailand

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Authors

PSPatsiri SriviengCPChaiwat PhadermrodThammasat University

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Implication

Cross-sectional study demonstrates low non-carcinogenic but potential long-term carcinogenic risks from silica exposure in ceramic workers, highlighting the need for improved workplace ventilation.

Key Points

  • To measure workplace concentrations of respirable dust and respirable crystalline silica in a ceramic factory and evaluate associated non-carcinogenic and carcinogenic health risks among workers.
  • Conducted a cross-sectional study in a ceramic factory in Thailand, collecting air samples across departments to determine respirable dust (RD) and respirable crystalline silica (RCS) levels.
  • Evaluated workers' knowledge, attitudes, and protective behaviors via structured questionnaires.
  • Quantified non-carcinogenic risk using the Hazard Quotient (HQ) and carcinogenic risk using Excess Lifetime Cancer Risk (ELCR) via deterministic methods and probabilistic Monte Carlo simulations.
  • RD concentrations ranged from <1.00 × 10⁻⁵ to 5.07 mg/m³ (one sample exceeded occupational standards), while RCS concentrations ranged from <1.00 × 10⁻⁵ to 6.94 × 10⁻⁴ mg/m³.
  • All samples demonstrated non-carcinogenic risk values below the threshold (HQ ≤ 1), but deterministic evaluation showed one sample exceeding the cancer risk threshold (CR > 10⁻⁶), with probabilistic Monte Carlo simulation confirming elevated cancer risk at the 97.5th percentile.
  • Worker self-reports of fatigue and dyspnea were significantly associated with measured RCS concentrations (p < 0.05).

Cite This Study

Srivieng et al. (2026) studied this question.

synapsesocial.com/papers/6a9299088e5d7d1fc0c10b98https://doi.org/10.1080/10807039.2026.2721632
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Also Consider

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