title: Polybrominated diphenyl ethers in indoor air during waste TV recycling process.
abstract: Recycling process for waste TV sets mainly consists of dismantling, printed wiring board (PWB) heating, PWB recycling, and plastic crushing in formal recycling plant. Polybrominated diphenyl ethers (PBDEs) contained in waste TV sets are released to indoor air. Air samples at 4 different workshops were collected to measure the PBDEs concentrations in both gaseous and particulate phases. The mean concentrations of ∑PBDEs in indoor air were in the range of 6780-2,280,000 pg/m(3). The highest concentration in gaseous phase (291,000 pg/m(3)) was detected in the PWB heating workshop. The ∑12PBDEs concentrations in PM2.5 and PM10 at the 4 workshops ranged in 6.8-6670 μg/g and 32.6-6790 μg/g, respectively. The gas-particle partitioning of PBDEs was disrupted as PBDEs were continuously released during the recycling processes. Occupational exposure assessment showed that only the exposure concentration of BDE-47 (0.118 μg/kg/day) through inhalation in the PWB heating workshop for workers without facemask exceeded the reference dose (0.1 μg/kg/day), posing a health hazard to workers. All the results demonstrated that recycling of TV sets was an important source of PBDEs emission, and PBDEs emission pollution was related to the composition of TV sets, interior dust, and recycling process.
authors.affiliation: School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, People's Republic of China.
authors.forename: Jie
authors.initials: J
authors.lastname: Guo
authors.affiliation: State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, School of Resources and Environmental Engineering, East China University of Science and Technology, Shanghai 200237, People's Republic of China.
authors.forename: Kuangfei
authors.initials: K
authors.lastname: Lin
authors.affiliation: State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, School of Resources and Environmental Engineering, East China University of Science and Technology, Shanghai 200237, People's Republic of China.
authors.forename: Jingjing
authors.initials: J
authors.lastname: Deng
authors.affiliation: State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, School of Resources and Environmental Engineering, East China University of Science and Technology, Shanghai 200237, People's Republic of China.
authors.forename: Xiaoxu
authors.initials: X
authors.lastname: Fu
authors.affiliation: School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, People's Republic of China. Electronic address: zmxu@sjtu.edu.cn.
authors.forename: Zhenming
authors.initials: Z
authors.lastname: Xu
mesh_terms: D000395:Air Pollutants, Occupational / Q000032:analysis*; D016902:Air Pollution, Indoor / Q000032:analysis / Q000706:statistics & numerical data*; D004391:Dust / Q000032:analysis; D059029:Electronic Waste / Q000032:analysis*; D055768:Halogenated Diphenyl Ethers / Q000032:analysis*; D006801:Humans; D016273:Occupational Exposure / Q000706:statistics & numerical data; D059027:Recycling; D013690:Television
chemical_list: D000395:Air Pollutants, Occupational; D004391:Dust; D055768:Halogenated Diphenyl Ethers
keywords: Particle pollution; Partition; Recycling process; Risk assessment