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Int. J. Environ. Res. Public Health 2014, 11(9), 9578-9594; doi:10.3390/ijerph110909578

An Integrated Approach to Assess Exposure and Health-Risk from Polycyclic Aromatic Hydrocarbons (PAHs) in a Fastener Manufacturing Industry

1
Department of Environmental and Occupational Health, Medical College, National Cheng Kung University, 138, Sheng-Li Rd., Tainan 70428, Taiwan
2
Division of Environmental Health and Occupational Medicine, National Health Research Institutes, 35 Keyan Road, Zhunan Town, Miaoli County 350, Taiwan
3
Department of Environmental Health, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 151-742, Korea
4
Department of Occupational Safety and Health, Chung Hwa University of Medical Technology, Wenhwa 1st St., Rende Dist., Tainan City 71703, Taiwan
*
Author to whom correspondence should be addressed.
Received: 4 June 2014 / Revised: 11 August 2014 / Accepted: 15 September 2014 / Published: 15 September 2014
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Abstract

An integrated approach was developed to assess exposure and health-risk from polycyclic aromatic hydrocarbons (PAHs) contained in oil mists in a fastener manufacturing industry. One previously developed model and one new model were adopted for predicting oil mist exposure concentrations emitted from metal work fluid (MWF) and PAHs contained in MWF by using the fastener production rate (Pr) and cumulative fastener production rate (CPr) as predictors, respectively. By applying the annual Pr and CPr records to the above two models, long-term workplace PAH exposure concentrations were predicted. In addition, true exposure data was also collected from the field. The predicted and measured concentrations respectively served as the prior and likelihood distributions in the Bayesian decision analysis (BDA), and the resultant posterior distributions were used to determine the long-term exposure and health-risks posed on workers. Results show that long term exposures to PAHs would result in a 3.1%, 96.7%, and 73.4% chance of exceeding the PEL-TWA (0.2 mg/m3), action level (0.1 mg/m3), and acceptable health risk (10−3), respectively. In conclusion, preventive measures should be taken immediately to reduce workers’ PAH exposures. View Full-Text
Keywords: polycyclic aromatic hydrocarbons; oil mist; exposure assessment; health-risk assessment; metal work fluid polycyclic aromatic hydrocarbons; oil mist; exposure assessment; health-risk assessment; metal work fluid
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Hsu, H.-I.; Lin, M.-Y.; Chen, Y.-C.; Chen, W.-Y.; Yoon, C.; Chen, M.-R.; Tsai, P.-J. An Integrated Approach to Assess Exposure and Health-Risk from Polycyclic Aromatic Hydrocarbons (PAHs) in a Fastener Manufacturing Industry. Int. J. Environ. Res. Public Health 2014, 11, 9578-9594.

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