Source identification and health risk of polycyclic aromatic hydrocarbons associated with electronic dismantling in Guiyu town, South ChinaJournal of Hazardous Materials (2011)
In this study the concentrations and distribution of sixteen polycyclic aromatic hydrocarbons (PAHs)
were investigated in gas and total suspended particle (TSP) samples collected during daytime and night
time. The sampling locations included an electronic waste dismantling workshop (EW), a plastic recycling
workshop (PW) and a waste incineration field (WF) in Guiyu, China. A large residential area (RA)
in this region was used as a control site. In the daytime, the highest concentration was found at WF
(1041 ng m−3); while in the night time the highest concentration was found outside of EW (744 ng m−3).
Comparison between work hours (daytime) and rest hours (night time) displayed that the total PAHs
(gas + particulate phase) concentrations and the percentages of PAHs associated with TSP were higher at
night than those in the daytime in all sampling workshops except WF. Source diagnostic-ratio analysis
revealed that unwanted materials and smoldering honeycomb coals were the main sources of PAHs in
EW, WF and PW. Benzo[a]pyrene equivalent [BaPeq] concentrations calculated by using the toxic equivalent
factors [TEFs] suggested that the occupational exposure levels were not significantly high when
compared with other occupational exposure. Additionally, our study suggested that the smoldering of
unwanted materials could produce much more toxic PAHs compounds.
- Electronic Waste,
- Health Risk,
- South China
Publication DateSpring April 7, 2011
Citation InformationZhang, D., An, T., Qiao, M., Loganathan, B.G., Zeng, X., Sheng, G., Fu, J. 2011. Source identification and health risk of polycyclic aromatic hydrocarbons associated with electronic dismantling in Guiyu town, South China. J. Hazard. Mat. 192, 1-7.
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