| Main Title |
Statistical Approach to Predicting Chronic Toxicity of Chemicals to Fishes from Acute Toxicity Test Data (for Microcomputers). |
| CORP Author |
Environmental Research Lab., Gulf Breeze, FL. |
| Publisher |
Jun 92 |
| Year Published |
1992 |
| Report Number |
EPA/SW/DK-92/047; |
| Stock Number |
PB92-503119 |
| Additional Subjects |
Software ;
Water pollution effects ;
Fishes ;
Toxicity ;
Chemical compounds ;
Diskettes ;
Least squares method ;
Exposure ;
Concentration(Composition) ;
Time series analysis ;
Statistical analysis ;
Fishkill ;
Mortality ;
Fish physiology ;
Risk assessment ;
Aquatic ecosystems ;
Multifactor probit analysis
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB92-503119 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
1 diskette |
| Abstract |
A methodology was developed to predict chronic toxicity based on acute data. The method is called Multifactor Probit Analysis (MPA) and uses the iteractive reweighed least squares method to estimate parameters of the probit surface. The independent variables are time of exposure and probit of the proportion responding to a concentration. MPA allows the user to predict the concentration of toxicant at any time and percent mortality, LC t,p. MPA calculates a point estimate and a measure of dispersion (95% Confidence limits). The MPA is versatile, entirely menu-driven and offers 7 probit models and transformation combinations of the independent variables. |
| Supplementary Notes |
System: IBM PS2 Model 50; DOS 4.0 operating system, 640K. Language: True BASIC. |
| Availability Notes |
The software is on one 5 1/4 inch diskette, 360K double density. File format: ASCII. Documentation included; may be ordered separately as PB92-169655. |
| NTIS Title Notes |
Software. |
| Category Codes |
68D#; 57Y; 57H; 57Z; 48B |
| NTIS Prices |
CP D02 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
225526678 |
| Origin |
NTIS |
| Type |
CAT |
