. Author manuscript; available in PMC: 2011 Aug 29.

Published in final edited form as: Atmosphere (Basel). 2011 May 16;2(2):96–109. doi: 10.3390/atmos2020096

Table 1.

Residential outdoor and indoor levels of air pollutants measured by FL

	Outdoor			Indoor
	0–2nd FL	3rd–5th FL	6th–32nd FL	0–2nd FL	3rd–5th FL	6th–32nd FL
N	32	47	19	99	143	57
Σ₈PAH_nonvolatile	1.58 (1.96 ± 1.35)	1.74 (2.45 ± 2.21)	1.48 (1.84 ± 1.45)	1.46 (2.03 ± 2.21)	1.32 (2.30 ± 6.34)	1.11 (1.67 ± 1.99)
Σ₈PAH_semivolatile	13.5 (19.3 ± 19.4)	16.4 (19.1 ± 10.4)	13.4 (18.7 ± 14.3)	36.8^* (43.3 ± 24.1)	44.6 (65.7 ± 65.4)	41.0 (45.5 ± 25.7)
BC	1.54 (1.67 ± 0.52)	1.65 (1.66 ± 0.44)	1.36 (1.51 ± 0.48)	1.59^* (1.85 ± 1.08)	1.52 (1.66 ± 0.72)	1.35 (1.47 ± 0.51)
PM_2.5	10.6 (10.7 ± 4.06)	11.6 (12.0 ± 3.21)	10.2 (10.7 ± 3.10)	13.1 (17.4 ± 14.7)	13.4 (16.6 ± 13.1)	12.8 (17.4 ± 13.8)

Kruskal-Wallis test performed among different FL;

p-value < 0.05; Unit expressed in ng/m³ for PAH, μg/m³ for BC and PM_2.5; Σ₈PAH_nonvolatile: BaA, Chry, BbFA, BkFA, BaP, IP, DahA, and BghiP; Σ₈PAH_semivolatile: Phe, 1Meph, 2Meph, 3Meph, 9Meph, 1,7DMeph, 3,6DMeph, and Pye; Median with (arithmetic mean ± standard deviation) presented.