|
Description: |
6 pages : tables ; 26 cm. |
|
|
With Note: |
With: Observations on the effects of irrigation water containing 3-trifluoromethyl-4-nitrophenol (TFM) on plants / by Philip A. Gilderhus. (No. 100) : Residues of malachite green in muscle, eggs, and fry of treated Atlantic salmon and chinook salmon / by J.L. Allen. (No. 101). |
|
|
Bibliography Note: |
Includes bibliographical references (page 6). |
|
|
Summary, Etc. Note: |
Abstract: The toxicity of benzocaine (ethyl 4-aminobenzoate; 98%) to eleven freshwater fishes was evaluated under various physical and chemical conditions. Tests conducted at three water temperatures, four hardnesses, and three pH's showed that none of these variables influenced toxicity. The higher temperatures tested did not increase the rate of toxicosis. Users of benzocaine should be cautioned that overdoses may lead to undue stress or mortality in exposed fish. Comparison benzocaine concentrations by high performance liquid chromatography at 0 and 96 hours showed no degradation of the compound during the exposure period. |