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. Author manuscript; available in PMC: 2018 Dec 20.
Published in final edited form as: Aerosol Air Qual Res. 2017 Sep;17(9):2235–2246. doi: 10.4209/aaqr.2016.07.0301

Table 2.

Averages of personal exposure concentrations and average ratio of personal exposure to ambient PM2.5 levels (rp/a) in different kinds of micro-environments.

ME classification Haze
Non-haze
Haze/Non-haze
PM2.5 sd.PM2.5 rp/a sd.rp/a PM2.5 sd.PM2.5 rp/a sd.rp/a PM2.5
μg m−3 μg m−3 μg m−3 μg m−3
ALL 243 91 0.85 0.31 103 147 1.7 1.9 2.4
Open 283 74 0.98 0.25 130 194 2.0 2.5 2.2
Closed 211 91 0.76 0.32 78 78 1.4 1.1 2.7
Source 275 77 0.97 0.27 127 178 2.1 2.3 2.2
Receptor 197 90 0.69 0.30 65 64 1.2 0.9 3.0
open_source 282 76 0.98 0.26 139 218 2.2 2.8 2.0
open_receptor 286 66 0.97 0.24 100 58 1.6 0.7 2.9
close_source 265 77 0.96 0.28 109 85 1.9 1.1 2.4
close_receptor 172 79 0.61 0.27 53 62 1.0 0.9 3.2