Decabromodiphenyl Ether versus Decabromodiphenyl Ethane: Source, Fate, and Influencing Factors in a Coastal Sea Nearing Source Region

Both decabromodiphenyl ether (BDE 209) and ethane (DBDPE) are still produced in large quantities China, especially the Shandong Province closed to Bohai Sea (BS). This study conducted a comprehensive investigation of distribution budget brominated flame retardants (BFRs) BS. BDE 209 was predominant BFR most investigated rivers flowing into BS, although DBDPE exceeded certain as result replacement with North China. The spatial distributions BFRs were controlled by proximity manufacturing base extent urbanization. BFRs’ BS influenced combination land-based pollution sources, environmental parameters (e.g., suspended particulate matter, organic carbon, black carbon), hydrodynamic conditions. variation trend 209/DBDPE ratios various media provided useful information. Vertically, ratio decreased from seawater surface layer sediment, indicating their differential transport A multi-box mass balance model analysis showed that degradation primary sink (?68%) sediment (?72%)