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Occupational exposure to bisphenol A (BPA) in a plastic injection molding factory in Malaysia

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Kouidhi W., Thannimalay L., Soon C. S., Ali Mohd M.

International Journal of Occupational Medicine and Environmental Health

2017

vol. 30

issue 5

743-750

Objectives The purpose of this study has been to assess ambient bisphenol A (BPA) levels in workplaces and urine levels of workers and to establish a BPA database for different populations in Malaysia. Material and Methods Urine samples were collected from plastic factory workers and from control subjects after their shift. Air samples were collected using gas analyzers from 5 sampling positions in the injection molding unit work area and from ambient air. The level of BPA in airborne and urine samples was quantified by the gas chromatography mass spectrometry – selected ion monitoring (GCMS-SIM) analysis. Results Bisphenol A was detected in the median range of 8–28.3 ng/m³ and 2.4–3.59 ng/m³ for the 5 sampling points in the plastic molding factory and in the ambient air respectively. The median urinary BPA concentration was significantly higher in the workers (3.81 ng/ml) than in control subjects (0.73 ng/ml). The urinary BPA concentration was significantly associated with airborne BPA levels (ρ = 0.55, p < 0.01). Conclusions Our findings provide the first evidence that workers in a molding factory in Malaysia are occupationally exposed to BPA. Int J Occup Med Environ Health 2017;30(5):743–750

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1 International Journal of Occupational Medicine and Environmental Health

1 Ali Mohd M.

1 Kouidhi W.

1 Soon C. S.

1 Thannimalay L.

1 2017

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Occupational exposure to bisphenol A (BPA) in a plastic injection molding factory in Malaysia