Results of the harmful effects of selected water pollutants (anilines, phenols, aliphatic compounds) to Daphnia magna

Using the acute Daphnia test (according to DIN 38412, Part II), the EC 50, EC 0 and EC 100 after 24 and 48 h test time were calculated or determined for 70 substances—phenols, anilines and aliphatic compounds. The results of the tests are given in three tables according to substance group. Evaluation showed that the toxicity of the substances (particularly in the case of anilines) may be higher or even substantially greater when the test period is extended from 24 to 48 h.