BTEX OCCURRENCE IN THE INDOOR AIR OF BEAUTY SALONS – PRELIMINARY RESEARCH

Abstract

This study aimed to identify and carry out a preliminary assessment of the health exposure ofemployees working in beauty salons to selected compounds from the BTEX group. The selectedsalons were all situated in the Silesian Voivodeship, recognized as one of the most polluted regionin Poland and European hot spot area in terms of air pollution. Measurements encompassed weeklymonitoring of marked BTEX compounds in beauty salons specializing in nail styling, hairdressingand cosmetics. As an internal substrate, measurements were also taken in a children’s hairdressingsalon where no chemical products were used; also a weekly measurement was performed foroutdoor air to look for outdoor background BTEX concentrations.For BTEX determination, Tenax sorbent tubes insertion was employed. The collected samples wereanalysed using a Clarus 500 gas chromatograph with a flame ionization detector (FID) connectedto a Perkin Elmer Turbo-Matrix 100 thermal desorber . Toluene concentrations were found to benotably elevated, reaching up to 73.19 μg/m in adult hairdresser salons, representing an orderof magnitude higher than that found in indoor background (children’s hairdresser) and outdoorbackground. Importantly, the concentrations of the measured BTEX compounds remained belowthe acceptable levels defined by the National Institute for Occupational Safety and Health (NIOSH).Among the individual BTEX compounds, nail treatment salons exhibited the highest meanconcentrations for benzene; m,p-xylene; n-propylbenzene; styrene; isopropylbenzene; and1,3,5-trimethylbenzene. Conversely, cosmetic salons registered the highest mean concentrationof ethylbenzene; o-xylene; and n-propylbenzene. The results indicate a chronic exposure ofsalon employees to the tested compounds, with heightened levels particularly noticeable amongindividuals with extensive professional experience. These findings underscore the importance ofongoing monitoring and occupational health measures in beauty salons, emphasizing the potentialrisks associated with long-term exposure to BTEX compounds.