A data fusion algorithm based study on the presence of polybrominated diphenyl ethers (PBDEs) and novel brominated flame retardants (NBFRs) in copper laminate sorting residues

The sorting residue of copper clad laminate stacked on site contains polybrominated diphenyl ethers (PBDEs) and novel brominated flame retardants (NBFRs).If not properly treated, they will be discarded into the surroundings and cause secondary pollution.The PBDEs and several NBFRs were detected in the sorting residue of copper clad laminate (SRCCL) of the storage yard.The 9PBDEs and 5NBFRs concentrations ranged from 2.71 to 122.83mg/kg.Different storage yards displayed three composition patterns of PBDEs, indicating that their sources were different, with domestic and imported ones.All results indicate that untreated SRCCL dumping sites are an important source of PBDEs and their emissions.