title: Environmental risk assessment of CRT and PCB workshops in a mobile e-waste recycling plant.
abstract: The mobile e-waste recycling equipment was chosen as the object of this study, including manual dismantling, mechanical separation of cathode ray tubes (CRTs), and printed circuit boards (PCBs) in the two independent workshops. To determine the potential environmental contamination, the noise, the heavy metals (Cu, Cd, Pb), and the environmental impacts of the e-waste recycling processes in the two workshops of the mobile plant have been evaluated in this paper. This study determined that when control measures are employed, the noise within the two workshops (<80 dB) will meet the national standards. In the CRT workshop, Pb was the most polluting metal, with 2.3 μg/m(3) and 10.53 mg/g in the air and floor dust, respectively. The result of a health risk assessment shows that noncancerous effects are possible for Pb (hazard index (HI) = 3.54 in the CRT workshop and HI = 1.27 in the PCB workshop). The carcinogenic risks to workers for Cd are relatively light in both the workshops. From the results of life cycle assessment (LCA), it can be seen that there was an environmental benefit from the e-waste recycling process as a whole.
authors.affiliation: State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Rm. 805, Sino-Italian Ecological Energy Efficient Building, Beijing, 100084, China.
authors.forename: Qingbin
authors.initials: Q
authors.lastname: Song
authors.forename: Xianlai
authors.initials: X
authors.lastname: Zeng
authors.forename: Jinhui
authors.initials: J
authors.lastname: Li
authors.forename: Huabo
authors.initials: H
authors.lastname: Duan
authors.forename: Wenyi
authors.initials: W
authors.lastname: Yuan
mesh_terms: D055984:Cathode Ray Tube; D004391:Dust / Q000032:analysis; D059029:Electronic Waste / Q000009:adverse effects / Q000032:analysis*; D004787:Environmental Pollution / Q000032:analysis*; D006801:Humans; D019216:Metals, Heavy / Q000032:analysis; D009622:Noise; D059027:Recycling; D018570:Risk Assessment
chemical_list: D004391:Dust; D019216:Metals, Heavy