Table 1: Aerosol detectors used in this study.

Specifications of instrumentMain setSubsetPortable aerosol detector

Particle size distribution10–420 nmSMPS (Nanoscan, TSI 3910)    
<106 particles/cm3
0.25–32 μmOPC (portable aerosol spectrometer, Grimm 1.109)OPC (portable aerosol spectrometer, Grimm 1.109)  
<2 × 106 particles/L

Particle number concentration10–700 nm    Discmini
(Matter Aerosol)
<106 particles/cm3 @20 nm
<5 × 105 particles/cm3 @100 nm

Lung-deposited surface area10–1,000 nmNAM
(TSI AeroTrak 9000)
NAM
(TSI AeroTrak 9000)
<104μm2/cm3 for A mode

SEMFilter sampler
(pore size 100 nm)