Control of Ethyl Methacrylate Exposures During the Application of Artificial Fingernails

Abstract

In 1990 six cases of physician-diagnosed occupational asthma in cosmetologists working with artificial fingernails prompted the Colorado Department of Health to request the assistance of National Institute for Occupational Safety and Health (NIOSH) researchers in the evaluation and control of nail salon technician exposure. A commercially available recirculating downdraft table with charcoal filters was purchased and evaluated. Researchers from NIOSH made modifications to the table that included increasing the downdraft air volume; enlarging the plenum for more consistent airflow rates at the face of the table; removing the charcoal filters while incorporating a ventilation system to the outdoors; and putting an extension around the duct leading to the perforated plate at the downdraft face of the table. An evaluation was performed using the following two configurations: the modified table with the downdraft ventilation on (vented) and without the downdraft ventilation on (unvented). Each of the two configurations was sampled for 3 days in random order. Testing included the use of XAD-2 solid sorbent tubes for determining ethyl methacrylate and methyl methacrylate concentrations. Relative concentrations of organics were examined and used to analyze work practices. The geometric mean ethyl methacrylate exposure for personal breathing zone samples when using the modified table for approximately 6 hours was 0.6 ppm; when using the unventilated conventional table, the geometric mean exposure was 8.7 ppm. The difference in the values is statistically significant (p = 0.0045). Methyl methacrylate concentrations were nondetectable on all sorbent tubes.

Cancer mortality among women employed in fast-growing U.S. occupations

“…Industrial hygiene approaches to identifying and preventing hazardous exposures have only recently been instituted in hairdressing and nail care salons [Spencer et al, 1997]. Stellman suggested that manicurists might be exposed to epichlorhydrin, a suspect carcinogen found in solvent for nail polish [Stellman, 1994].…”

Occupational Allergic Contact Dermatitis and Asthma due to a Single Low Molecular Weight Agent

“…In 1990, six cases of occupational asthma in cosmetologists working with artificial fingernails prompted the Colorado Department of Health to request evaluation and control of nail salon technician's exposure to methacrylates from the National Institute for Occupational Safety and Health. Control of exposures during the application of artificial fingernails showed an elevated geometric mean ethyl methacrylate exposure value while methyl methacrylate concentrations were non-detectable on all sorbent tubes 27) . The only observation of both ACD and OA from acrylates was reported in 2002 in Helsinki by Linström et al, and is similar to our subjects No.1 and 2.…”

Nail beauty therapy: an attractive enhancement or a potential hazard?

“…Systemic adverse reactions may occur. Six cases of occupational asthma in cosmetologists working with artificial fingernails due to ethyl methacrylate have been reported 11 …”