FIGURE 2.

Degradation of the 4-PAH mixture by nine consortia from the deep sea water column of the Indian Ocean. PAH degradation experiments were conducted in 100 ml Erlenmeyer flasks containing 30 ml NH medium with a mixture of 4-PAHs as carbon sources (using the same concentrations in Figure 1). The residual PAHs were quantified with GC-MS; the degradation percentage was the average of triplicate repeats at 30 days. Phe, An, Flan, and Pyr are abbreviations of phenanthrene, anthracene, fluoranthene, and pyrene, respectively.