Heavy metal levels in dust at an e-waste hotspot in southeast China and risk assessment
Of the different computer e-waste processing activities carried out in Guiyu, southeast China, the crude recovery of component parts and metals from printed circuit boards is probably the most important input of heavy metals to the surface environment. In this study, dust samples were collected from printed circuit board recycling workshops, roads and nearby public areas (schoolyard, open food market) to investigate the concentrations of seven heavy metals (Cd, Co, Cr, Cu, Ni, Pb, Zn). Average Pb, Cu, Zn and Ni concentrations in dust from printed circuit board recycling workshops were 110000, 8360, 4420 and 1500 mg/kg, respectively, and those of road dust were also enriched. Levels of heavy metals at the schoolyard and the food market showed that public places were adversely impacted by printed circuit board recycling. A risk assessment predicted that the elevated concentrations of heavy metals, in particular Pb and Cu, due to printed circuit board recycling have the potential to pose serious environmental and human health risks to the workers and the local residents of Guiyu, especially children, and warrant an urgent investigation of adverse health impacts.
Dust e-waste heavy metals risk assessment
A. O. W. Leung N. S. Duzgoren-Aydin K. C. Cheung M. H. Wong
Croucher Institute for Environmental Sciences, and Department of Biology, Hong Kong Baptist Universi Department of Earth Sciences, University of Hong Kong, Pokfulam Road, Hong Kong SAR, PR China
国际会议
第九届痕量元素生物地球化学国际会议(9th International Conference on the Biogeochemistry of Trace Elements)
北京
英文
629-630
2007-07-15（万方平台首次上网日期，不代表论文的发表时间）