1 Evidence for photochemical and microbial debromination of polybrominated 1 diphenyl ether flame retardants in San Francisco Bay sediment 2 3 Lisa A. Rodenburg 1* , Qingyu Meng 2 , Don Yee 3 , and Ben K. Greenfield 3,4 4 1 Department of Environmental Sciences, Rutgers University, 14 College Farm 5 Road, New Brunswick, NJ 08901, USA 6 2 School of Public Health, Rutgers University, Piscataway, New Jersey 08854, United States 7 3 San Francisco Estuary Institute, 4911 Central Avenue, Richmond, CA 94804 8 4 Current affiliation: Environmental Health Sciences Division, School of Public Health, 9 University of California, Berkeley, 50 University Hall #7360, Berkeley, CA 94720-7360 10 *Corresponding author. Phone 732-932-9800 x 6218, Fax 732-932-8644, email 11 rodenburg@envsci.rutgers.edu 12 13