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Semi-Quantitative Health Risk Assessment of Heavy Metal Dust Exposure Among Nail Technicians Using the Sqra Technique and Monte Carlo Simulation Publisher Pubmed



Karimi Zeverdegani S1 ; Mohebian Z2 ; Mohammadi F3 ; Tajik L4
Authors
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Authors Affiliations
  1. 1. Department of Occupational Health Engineering, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran
  2. 2. Department of Occupational Health Engineering, Student Research Committee, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran
  3. 3. Department of Enviromental Health Engineering, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran
  4. 4. Department of Occupational Health and Safety at Work Engineering, Environmental Health Research Center, Lorestan University of Medical Sciences, Khorramabad, Iran

Source: Toxicology and Industrial Health Published:2024


Abstract

Nail technology, including the application of artificial nails and nail care, is a developing sector of the global beauty industry. Nail technicians are exposed to a variety of chemical substances through inhalation, as they spend extended periods of time in close proximity to these materials. This study aimed to evaluate the semi-quantitative health risk of dust-containing heavy metals among nail technicians. This analytical descriptive study employed the risk assessment method provided by the Singapore Occupational Health Department to evaluate the health hazards of lead, cadmium, nickel, chromium, and manganese. Dust samples from nail filing were collected from the respiratory zone of 20 nail technicians following the NIOSH 7300 method. The samples were analyzed using ICP-OES instrumentation. Monte Carlo simulation was utilized to characterize the risk and its uncertainties. Manganese and cadmium had the highest and lowest mean concentrations, respectively. The risk scores of the metals ranked from highest to lowest were as follows: (Formula presented.). All five metals had risk rankings below 2.8, signifying a minimal risk level. Sensitivity analysis using Spearman’s correlation coefficient demonstrated a positive relationship between concentration, daily hours of exposure, and the number of workdays per week with the risk score (RR) and exposure level (ER). Conversely, the variable of weekly working hours (W) showed a negative correlation with these parameters. Despite the low-risk level of the examined metals, continuous exposure and potential long-term effects on nail technicians warrant preventive measures. Recommendations include implementing local exhaust ventilation systems, using table fans, establishing work-rest cycles, wearing N95 dust masks, and using reputable and high-quality nail polishes. © The Author(s) 2024.
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