SUPPLEMENTARY MATERIAL for Assessment of exposure determinants and exposure levels by using stationary concentration measurements and a probabilistic Near-Field/Far-Field exposure model

Table of contents

Text S1. Terminology according to ECHA R.14 3

Text S2. Data requirements for exposure modeling and emission source characterization 4

Text S3. Generation rate 6

Text S4. Air mixing flow rate between NF and FF, β 7

S4.1 Brief description of a Near-Field/Far-Field (NF/FF) model 7

S4.2 Approximation methods 7

S4.3 Approximation methods applicability for powder pouring measurements 8

S4.4 Setting the mean random air speed and near field volume flow rate 8

References 9

Appendix S1. Simulation of NF flow rate 10

Appendix S2. No. 1: Observed scenario 12

Appendix S3. No. 2: G range increased by ×2 15

Appendix S4. No. 3: β decreased by ×2 18

Appendix S5. No. 4: AER reduced by ×5 to 0.4 to 1.6 1/h 21

Appendix S6. No. 5: A small room (Vroom = 100 m3) 14

Appendix S7. No. 6: NF including LEV at 9.6 m3/min 27

Appendix S8. No. 7: A large room (Vroom = 10 000 m3) 31

Appendix S9. No. 8: Worst-case: G increased, β decreased, AER decreased and small room 34

(Vroom = 100 m3)