2. ENVIRONMENTAL ChEMISTRy & TEChNOLOGy 2.1. Lectures

Chem. Listy, 102, s265–s1311 (2008) Environmental Chemistry & Technology
tion of ecotoxicological parameters. Calculated values from
probit model and experimental values were in very good correlation
with declared value of tests.
Table II
The ecotoxicity of K 2 CrO 4 (n = 9; concentration in mg dm –3 )
Daphtoxkit F Thamnotoxkit Lemma
EC50/ EC50/ F minor
24 h 48 h LC50/24 h IC50/168 h
Declared
values
1.03 0.75 0.10 –
Experim.
value
0.99 0.79 0.092 20.52
Probit
model
0.96 0.69 0.093 –
Median 0.99 0.75 0.093 20.00
s 0.0286 0.0411 0.0035 0.5200
Conclusions
The ecotoxicity of the tested chemical was confirmed by
the application of ecotoxicological tests. In the majority of
cases, on the base of the obtained results of the study tests with
chemical, the tests perform very suitable way for the study of
ecotoxicity and can be used for evaluation of ecotoxicity of
other chemicals and wastes. This study confirmed declared
value and all data were statistical evaluated in detail, and the
sensitivity of testing organism was also confirmed.
This work has been supported by Project No. MSM
002163050 form the Ministry of Education, Youth and Sports
of the Czech Republic, and from the COST ACTION 636 Project
No. OC 183.
s360
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