Kinetics of TBP dehalogenation and formation of bromophenol intermediates in a 10% (wt/vol) sediment slurry incubated under anaerobic conditions. Symbols: □, TBP; ▴, phenol; ▾, 2,6-dibromophenol; ○, 2,4-dibromophenol; ■, 2-bromophenol; +, 4-bromophenol.