POLYBROMINATED DIPHENYL ETHERS IN THE ENVIRONMENT OF E-WASTE RECYCLING

摘要

Polybrominated diphenyl ethers (PBDEs) are used as flame retardants (BFRs) in a wide variety of applications including plastics, resins, electronic and electrical product. They are ubiquitous environmental contaminants due to their extensive use. Structurally, PBDEs resemble environmental contaminants such as PCBs and PCDD/Fs. The analysis of PBDE congeners by GC/MS was studied in terms of their potential interferences. Different MS approaches were normally used for the PBDE analyses: quadrupole and ion trap mass (EI-MS). Carbon-13 isotope dilution method was used to quantify fish samples collected from electronic waste recycling region. E-waste containing PBDEs may be incinerated and emitted into the atmosphere, deposited in field and river, where they may move into water and sediment. Through these environmental pathways, exposure to wildlife and humans occurs. Focus will be placed on the fish because PBDEs have a persistent and high binding affinity to adipose and a tendency to accumulate in fish. It is expected that the environment in Guiyu, Guang Dong is significantly contaminated by PBDEs due to the e-waste recycling activities.