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 ...

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 ...

Seven-day acute renewal toxicity_ tests were conducted using the fathead minnow (Pimephales promelas) or a cladoceran (Ceriodaphnia dubia) by exposing them to several concentrations of either ammonia, aniline, methyl ...

A proposal to use sediments dredged from the Superior=Duluth Harbor as construction material for the proposed Arrowhead High Bridge has been the impetus be­ hind this study. The focus of the study is a comparison of ...

Acute toxicity tests with the fathead minnow (Pimephales promela s) as test organism were completed for five chemicals in the structure-activity program this quarter. These chemicals were dibutyl succinate, ethyl hexanoate, ...

Toxicological studies were conducted in two areas: (1) the toxicity, biocdncentration potential and metabolism of five herbicides in fish; and (2) the toxicity and/or metabolism of priority pollutants and related chemicals ...

The freshwater literature on aquatic toxicity and bioconcentration/ bioaccumulation has been critically reviewed for selected chemicals as identified under Task l of work assignment no. 45. Modifications of the original ...

PROJECT OBJECTIVES This study will provide information for an assessment of (1) the hazard po­tential of selected organic compounds for freshwater organisms, and (2) the use of aquatic organisms as biological screening ...