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Table 2 Fractionation of airborne MMVF. Weight gain of the total initial MMVF mass per fraction

From: Composition, Respirable Fraction and Dissolution Rate of 24 Stone Wool MMVF with their Binder

Impactor stages, aerodynamic diameters

MMVF #2

MMVF #5

MMVF #12

MMVF #17 (pre-1995)

< 7.6 μm

2.40%

0.29%

6.29%

3.65%

< 4.1 μm

0.22%

0.02%

0.13%

0.04%

< 1.2 μm

0.08%

0.01%

0.08%

0.01%

< 0.3 μm

0.03%

<<0.01%

0.04%

<<0.01%

< 0.1 μm

<<0.01%

<<0.01%

<<0.01%

<<0.01%