M. Trapido et Y. Veressinina, Use of the Daphnia magna test to estimate the toxicity of the ozonation by-products of phenols and chlorophenols, ATLA-ALT L, 27(3), 1999, pp. 425-431
The toxicities of the ozonation products of 18 phenols were assayed with th
e Daphnia magna 24-hour toxicity test. The toxicities of the ozonation prod
ucts of eight individual chlorophenols, and a mixture of them, are signific
antly lower than the toxicities of untreated solutions of chlorophenols. Fo
r some other phenols, including ordinary phenol (oxybenzene), toxicity incr
eased during ozonation, and the formation of very toxic products was observ
ed.