… data of some metals are not available. Therefore, we conducted chronic toxicity tests to
determine the effects of 50 metals on the water flea, Ceriodaphnia dubia. The IC 20 of 20 …

… One neonate of Ceriodaphnia was placed in each test vessel (50-ml glass beaker filled
with 15 ml of test solution), transferred daily into fresh solution, and mortality and production of …

… The same general procedure that has been used with other metals was applied to each
of … to other published studies, all toxicity data were normalized to a hardness of 50 mg/L (as …

… The addition of DOC (0.4 mg/L) resulted in a ∼50% decrease in toxicity while the addition of
sulfide (… should be more adequately evaluated in determining the toxicity of various metals. …

… Metals and ammonia were … metals/salts/inorganics. The EnviroTox analysis encompasses
a different chemical domain. A total of 50 chemicals have multiple experimental acute toxicity …

… The purpose of this study was to evaluate the acute and chronic single-chemical and
mixture effects of three common trace metal contaminants—copper, lead, and zinc—on the …

… healthy population not effectively sensitized to metal toxicity … Usually, 6 experimental vessels
(50 mL glass beakers filled … in acute and chronic toxicity to Co dubia was observed at the …

… metal toxicity, namely hardness, DOM, pH and alkalinity. … on the chronic toxicity of Pb to
Ceriodaphnia dubia expressed … and (B) 50% reduced reproductive output over 7 d (EC 50 ). Error …

… employed for both acute and chronic toxicity tests. [ Citation 5 ] … For evaluating the chronic
toxic effects of the heavy metal, … h acute toxicity indicates that cladocerans experience 50% …

… dioxide to the organism Ceriodaphnia dubia was conducted. … ICP instrument at the 1 to 50
I_g/Luranium concentrations. … solutions, a sm'mgate metal was used to prepare solutions in …