Biodegradation of Polyethoxylated Nonylphenols

Figure 2

Bacterial growth on 3% NPEO₁₅ at different pH values. Gray, black, and white bars indicate bacterial growth at 3, 6, and 9 h, respectively. (a) Klebsiella pneumoniae strain Yas1; (b) Pseudomonas fluorescens strain Yas2.

(a)

(b)