From: Simultaneous measurement of nitrous acid, nitric acid, and nitrogen dioxide by means of a novel multipollutant diffusive sampler in libraries and archives
Pollutant
Campaign
Indoor
Outdoor
I/O
IN
OUT
NO2
S1
3.1 ± 0.1
19.9 ± 0.8
0.2
S2
bdl
12.2 ± 0.5
W
4.0 ± 0.2
29.1 ± 1.2
0.1
HONO
1.0 ± 0.6
0.9 ± 0.6
1.1
5.2 ± 3.5
1.9 ± 1.3
2.7