Simultaneous renewal acute toxicity tests were conducted exposing fathead minnows (Pimephales promelas) to silver at three pH levels. The purpose of the tests was to determine if pH of the water affected the toxicity of ...

Simultaneous renewal 96-h acute toxicity tests were conducted exposing fathead minnows (Pimephales promelas) to silver at three organic carbon levels. The purpose of the tests was to determine £he relationship between the ...

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 ...

The Center for Lake Superior Environmental Studies of the University of Wisconsin-Superior, Superior, Wisconsin 54880 has completed acute toxicity test with eighteen organic compounds. Fathead minnows, Pimephales promelas, ...

Acute, static exposures with aluminum were completed at the campus of the University of Wisconsin-Superior (UW-S) using two species of freshwater organisms (brown planaria, Dugesia tigrina; daphnid, Daphnia magna). The ...

The Center for Lake Superior Environmental Studies (CLSES) of the University of Wisconsin-Superior has conducted two static acute toxicity tests with the amphipod Gammarus pseudolimnaeus exposed to sodium selenite(SeIV) ...

Interest in mining for metals is increasing in the areas ceded in the treaties between the U.S. government and the Ojibwe tribes in 1837 and 1842. In the interest of protecting the natural resources and peoples of these ...

While the purpose of an annual Project report is to evaluate the accomplishments of the past year in relation to a base­ line, this report, because of time frame will address the Project more in terms of a narrative. At ...

A relationship between water hardness and the toxicity of silver to aquatic organisms was reported in the National Water Quality Criteria for the Protection of Aquatic Life for Silver document (EPA 440/5-80-071 or PB81- ...

A study was conducted to compare the toxicities of copper, lead and zinc in laboratory water with their respective toxicities in water from the St. Louis River. St. Louis River water was collected upstream of major ...