Twenty-two chemicals from the EPA priority pollutant list were studied for their acute and/or chronic toxicity to selected freshwater organisms. These included 1,2-dichloroethane, 1,1,2-trichloroethane, 1,1,2,2-tetra ...

Acute 96-h flow-through toxicity tests with the compound 2,4,5- trichlorophenol (TCP) were conducted using the annelid, Lumbriculus variegatus, as the test organism. Toxicity tests were conducted at three nominal pH ...

A life-cycle study was conducted with Chironomus tentans to assess the significance of growth retardation of second to third instar larvae over a 10-d test period on long-term survival, emergence success, and fecundity. ...

The quality of sediment from the Lower Fox River between the dam at DePere, Wisconsin, and the mouth of the river, and from the southern tip of Green Bay, Lake Michigan, was evaluated at 12 sites by a combination of ...

Toxicological studies were conducted in two areas: (l) the toxicity, bioconcentration potential and metabolism of five herbicides in fish; and (2) the toxicity and/or metabolism of priority pollutants and related chemicals ...

Work began on thirteen assigned chemicals to determine acute and chronic toxicities bioconcentration, and'metabolism in freshwater organisms. The assigned chemicals for testing are as follows: di-2-ethylhexylphthalate, ...

Acute toxicity tests with silver nitrate (AgN0₃) were conducted with two species of test organisms. The fathead minnow, Pimephales promelas Rafinesque, and a cladoceran, Daphnia magna, were used to determine the effects ...

Acute toxicity tests were conducted to determine the effects on the toxicity of silver of having food present in test chambers and the effect of having silver solutions of different ages. Tests were conducted in two ...

Simultaneous 96-h static acute toxicity tests were conducted exposing fathead minnows (Pimephales promelas Rafinesque) to aged and non-aged silver test solutions. Toxicity tests consisted of exposing test organisms to ...

Simultaneous 48-h static acute toxicity tests were conducted exposing the cladoceran, Daphnia magna, to silver solutions with four test conditions. The tests consisted of exposing test organisms to aged test solutions ...