| Main Title |
Comparison of the EC50s of Algal Toxicity Tests Calculated by Four Methods. |
| Author |
Walsh, G. E. ;
Deans, C. H. ;
McLaughlin, L. L. ;
|
| CORP Author |
Environmental Research Lab., Gulf Breeze, FL. |
| Year Published |
1987 |
| Report Number |
EPA/600/J-87/258; |
| Stock Number |
PB88-182423 |
| Additional Subjects |
Tin ;
Toxicity ;
Algae ;
Pesticides ;
Concentration(Composition) ;
Growth ;
Organic compounds ;
Inorganic compounds ;
Graphic methods ;
Population growth ;
Statistical analysis ;
Density(Mass/Volume) ;
Interpolation ;
Chemical analysis ;
Reprints ;
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB88-182423 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
7p |
| Abstract |
EC50s (calculated concentrations that would inhibit growth by 50%) of 21 pesticides in unicellular algal toxicity tests were calculated by straight-line graphical interpolation, moving average interpolation, probit analysis and the binomial method. EC50s of 18 tin compounds were calculated by graphical interpolation, moving average and probit methods. A total of 187 tests was analyzed. Values of the EC50 were essentially identical when calculated by each method, and it is concluded that straight-line graphical interpolation, the simplest and most rapid method, can be used to estimate relative toxic effect on algal population growth. |
| Supplementary Notes |
Pub. in Environmental Toxicology and Chemistry, v6 p767-770 Apr 87. |
| NTIS Title Notes |
Journal article. |
| Title Annotations |
Reprint: Comparison of the EC50s of Algal Toxicity Tests Calculated by Four Methods. |
| PUB Date Free Form |
1987 |
| Category Codes |
68D; 57C; 57Y; 47D; 99A |
| NTIS Prices |
PC A02/MF A01 |
| Primary Description |
600/04 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
814619748 |
| Origin |
NTIS |
| Type |
CAT |
