Abstract
Polybrominated diphenyl ethers (PBDEs) contained in waste printed wiring board (PWB) matrix and surface dust can be emitted into the air during thermal process, which is widely used to detach the electronic components from the base boards of waste PWB. In this study, PBDEs concentrations in air and dust samples were detected in a PWB-heating workshop. The results showed that the mean concentrations of ∑8PBDEs in PM10 and TSP were 479 and 1670 ng/m3, respectively. Compared with surface dust collected from waste PWB (15600 ng/g), PBDEs concentrations in dust from the workshop floor (31100 ng/g), heating machine inside (84700 ng/g), and the cyclone extractor (317000 ng/g), were condensed after thermal process. All the results showed that recycling of waste PWB was an important source of PBDEs emission.
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