Extrapolation Factors for Tiny Toxicity Data Sets from Species Sensitivity Distributions with Known Standard Deviation

Data Sets of Birds and Mammals ....110 6.5 Discussion ....................................................................................................113

6.5.1 Goodness-of-Fit Test for the Normal Distribution..........................113 6.5.2 Toward a Fraction Affected and Extrapolation Factors for Acute

Toxicity Data Comparable to Chronic Extrapolation......................114 6.5.3 Limitations of Tiny Data Set Extrapolation and Possible

Improvements ...................................................................................117

The evaluation of the possible environmental hazard for birds and mammals arising from the use of agricultural pesticides is usually based on the lowest median lethal dose (LD