...fish flesh, and almost nothing is known of their toxic effect on humans. Methods are needed to measure the pollutional characteristics of new wastes where...pollutional effects of which have not been fully assessed. Typical of the studies to be carried out are those designed to determine (a) the effects of pollutants...

...parameters no longer apply — methods which will accurately measure the effects of new pollutants ou water quality and suitability for use. Methods are...pollutional effects of which have not been fully assessed. (6) Research accomplishments. — Among the accomplishments in determining the effects of pollution...

...differentiation of man-made wastes from natural contaminants that occur in streams. Methods are needed to measure the pollutional characteristics of new wastes where...pollutional effects of which have not been fully assessed. 7S-839— 67 — pt. 2 54 The sources and fate of pollutante must be determined. There are four major...

...differentiation of man-made wastes from natural contaminants that occur in streams. Methods arc needed to measure the pollutional characteristics of new wastes where...pollutants, the pollutional effects of which have no' been fully assessed. 78-839 — 67 — pt. 2 54 The sources and fate of pollutants must be determined....

...which will accurately UI»M~ ure the effects of new pollutants on water quality and suitability for us* Methods are needed also for some of the older wastes and for natural pollutant*, the pollutional effects of which have not been fully assessed. The source and fate of pollutants...

...present concentrations in natural waters appear not to be acutely toxic. Methods are needed to measure the pollutional characteristics of new wastes where...pollutional effects of which have not been fully assessed. (6) Research accomplishments. — Among the accomplishments in determining the effects of pollution...