SUPPLEMENTARY MATERIAL for Assessment of exposure determinants and exposure levels by using stationary concentration measurements and a probabilistic Near-Field/Far-Field exposure model
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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)
目录
文本S1 符合欧洲化学品管理局(ECHA)R.14条款的术语 3
文本S2 暴露建模与排放源表征的数据要求 4
文本S3 产生速率 6
文本S4 近场(Near-Field, NF)与远场(Far-Field, FF)之间的空气混合流量β 7
S4.1 近场/远场(NF/FF)模型简要说明 7
S4.2 近似方法 7
S4.3 近似方法在粉体倾倒测量中的适用性 8
S4.4 平均随机空气流速与近场体积流量的设定 8
参考文献 9
附录S1 近场流量模拟 10
附录S2 案例1:实测场景 12
附录S3 案例2:G范围扩大至原2倍 15
附录S4 案例3:β值降至原1/2 18
附录S5 案例4:空气交换率(Air Exchange Rate, AER)降至原1/5,范围为0.4~1.6 1/h 21
附录S6 案例5:小型房间(房间体积Vroom=100 m³) 14
附录S7 案例6:带有局部排气通风(Local Exhaust Ventilation, LEV)的近场场景,排气量为9.6 m³/min 27
附录S8 案例7:大型房间(房间体积Vroom=10000 m³) 31
附录S9 案例8:极端工况:G值升高、β值降低、空气交换率(AER)下降且为小型房间(Vroom=100 m³) 34
创建时间:
2021-06-08



