Results from a toxicity test with seven different concentrations of waste water. Results were reported as number ofsprings of a water flea, C. dubia.

data(C.dubia)

Format

A data frame with 50 observations of the following 2 variables.

conc

a numeric vector giving waste water in percentage

number

a numeric vector

Source

A. J. Bailer and J. T. Oris (1997). Estimating inhibition concentrations for different response scales using generalized linear models. Environmental Toxicology and Chemistry, 16:1554--1559.