Table 2.

Correlation coefficient between Logit(p)* and log (number of particles/mg according to size category) (from [[58]])

Diameter (μm)	Length (μm)
	≤4	>4-8	>8
>4	-	−0.28	−0.30
>1.5-4	-	−0.24	0.13
>0.25-1.5	−0.45	0.45	0.68
≤0.25	0.0	0.63	0.80

*Logit (p) = log[p/(1-p)], with p = probability of tumor formation.