Table 2.

Inhibition of A. fischeri luminescence caused by undiluted sediment elutriates corresponding to 75 mg sediment dry weight/ml, after 1 min incubation.

Sample No.	Inhibition average, %	Standard deviation	Classification according Persoone et al. (23)
C1	−66.15	0.18	No acute toxicity
B3	−7.70	3.48	No acute toxicity
B4	−3.52	10.50	No acute toxicity
B5	19.59	22.33	No acute toxicity
B6	15.80	3.09	No acute toxicity
B7	38.23	4.56	Slight acute toxicity
B8	16.60	5.37	No acute toxicity
E2	−54.94	33.33	No acute toxicity