Fig. 3

Neutrophil influx depending on P25-retained surface area dose: dose rate effect. 1-week (blue +), 2- and 4-week (green ×), and 13-week (red sign). The blue, green and red dotted lines represent the fit of the regression models for the 1-week, 2- and 4-week, and 13-week exposures, respectively. The dotted blue, green and red lines delimit the 95% confidence intervals of the regression models