The Center for Lake superior Environmental studies (CLSES) was created in the late 1960's, a period of national environmental concern. The founding scientists, from the departments of biology, chemistry, geology and ...

Toluene is methylated benzene and obtained mainly from tar oil. It has many common uses as a solvent and in the manufacture of benzoic acid, benzaldehyde, explosives, dyes and many other organic compounds. Toluene behaves ...

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 ...

Silver is used in jewelry, silverware, coins, electroplating, .and photo­ graphic processes. It is a waste product in the manufacture of these products and processes. Also, metal mining ...

Phenanthrene is a by-product of fossil fuel combusion. It is a constituent of coal tars and has been detected in the stack gases of both oil- and coal-fired power and manufacturing plants. The purpose of this study ...

Several toxicity tests are needed to complete data sets for the numerical national water quality criteria for the protection of aquatic life. This report contains some of the needed tests which are: an acute renewal ...

Acenaphthene is a polycyclic aromatic hydrocarbon (PAH). It is a con­stituent of coal tar and other petroleum residues. The compound is used as a dye intermediate, as an insecticide and fungicide, and in the manufacture ...

Acute 96-h flow-through, toxicity tests with lead were conducted using the annelid Lumbriculus variegatus and the bullfrog Rana catesbiana as the test organisms. The toxicity tests were-conducted to generate ECSO or ...

A 48-h acute toxicity test was conducted exposing the cladoceran, Daphnia magna, to five concentrations of phenanthrene. Renewal of exposure solutions of phenanthrene was done every 24-h.

The Environmental Health Laboratory at the University of Wisconsin-Superior (UW-S) conducted tests to complete the data set necessary to derive national water quality criteria for nonylphenol. The tests were the eight ...