“…No data are available about a direct toxicity for human health and environment coming from aromatic sulfonates. The threat to the environment is due to possible degradation processes of these chemicals, processes that can naturally occur after their disposal in the environment and that can lead, as reported by many authors, to the formation of toxic aromatic amines (Fogg and Summan, 1983; Garrigos et al, 2002; Lancaster and Lawrence, 1982, 1983; Lawrence et al, 1981; Richfield‐Fratz and Bailey, 1987; Stavric et al, 1979). Sulfonate wastes often are effluents of dye industries and are intensily colored.…”