Water-Based Automobile Paints Potentially Reduce the Exposure of Refinish Painters to Toxic Metals

Hsu Der-Jen, Shun-Hui Chung, Jie-Feng Dong, Hui-Chung Shih, Hong-Bin Chang and Yeh-Chung Chien
Additional contact information
Hsu Der-Jen: Department of Safety, Health and Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiun 824, Taiwan
Shun-Hui Chung: Institute of Labor, Occupational Safety and Health, Ministry of Labor, New Taipei City 221, Taiwan
Jie-Feng Dong: Graduate Master Program in Safety, Health and Environmental Engineering, Department of Safety, Health and Environmental Engineering, National Yunlin University of Science and Technology, Douliu 640, Taiwan
Hui-Chung Shih: Department of Safety, Health and Environmental Engineering, Hungkuang University of Science and Technology, Shalu 433, Taiwan
Hong-Bin Chang: Institute of Labor, Occupational Safety and Health, Ministry of Labor, New Taipei City 221, Taiwan
Yeh-Chung Chien: Department of Safety, Health and Environmental Engineering, National Yunlin University of Science and Technology, Douliu 640, Taiwan

IJERPH, 2018, vol. 15, issue 5, 1-13

Abstract: Exposure to lead-containing dusts is a global public health concern. This work addresses an important issue of whether eco-friendly water-based paints reduce the exposure potential of auto-repainting workers to metals. With this aim, metal levels in automobile paints and worker metal exposure were measured using both solvent- and water-based paints. The levels of metals, and particularly Pb, Cr (total), Fe, and Cu, in solvent-based paints varied greatly among colors and brands. Lead concentrations ranged from below the detection limit (~0.25 μg/g) to 107,928 μg/g (dry film) across all samples. In water-based paints, the concentrations of Pb and Cr (total) were generally two to three orders of magnitude lower, but the concentrations of Al and Cu exceeded those in some solvent-based paints. The personal short-term exposure of workers who applied water-based paints of popular colors, such as black and white, were generally low, with Pb levels of less than <4 µg/m 3 and Cr (total) levels of less than 1 µg/m 3 . Conversely, mean short-term exposure to Pb during the painting of a yellow cab using solvent-based paints were 2028 µg/m 3 , which was ~14 times the Taiwan short-term permissible exposure limit, while the mean level of exposure to Cr (total) was 290 µg/m 3 , which was well below the exposure limit. This study demonstrates that water-based paints reduce the exposure potential to lead, and highlights the importance of source control in limiting the toxic metals in paints.

Keywords: paints; spray painting; toxic metals; lead; exposure assessment (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2018
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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