. Author manuscript; available in PMC: 2013 Jun 19.

Published in final edited form as: J Occup Environ Med. 2008 May;50(5):570–575. doi: 10.1097/JOM.0b013e3181638640

TABLE 1.

Summary Statistics of the Nicotine Sampling in 14 Office Buildings in China, Separated by Types of Smoking Policy and Sampling Locations

Nicotine Concentration (3g/m³)	Buildings With a Smoke-Free or Restrictive Policy				Buildings With No Smoke-Free or Restrictive Policy				All 14 Buildings
Nicotine Concentration (3g/m³)	Offices With at Least One Smoker	Offices With No Smoker	All Offices	Entire Building	Offices With at Least One Smoker	Offices With No Smoker	All Offices	Entire Building	Offices With at Least One Smoker	Offices With No Smoker	All Offices	Entire Building
Minimum	0.24	0.08	0.08	0.08	0.08	0.08	0.08	0.08	0.08	0.08	0.08	0.08
10th percentile	0.68	0.18	0.21	0.24	0.26	0.08	0.15	0.17	0.26	0.08	0.17	0.20
25th percentile	1.19	0.29	0.35	0.38	0.75	0.25	0.38	0.37	0.85	0.27	0.35	0.37
Median	2.21	0.47	0.67	0.78	6.66	0.67	1.61	1.39	4.39	0.58	1.21	1.15
Mean	4.74	1.90	2.71	2.80	12.80	2.72	8.43	6.83	11.31	2.37	6.65	5.51
75th percentile	4.98	1.16	1.88	1.96	18.82	1.93	10.99	6.84	17.25	1.36	6.48	4.75
90th percentile	12.77	2.49	6.10	6.10	34.03	4.75	27.42	20.6	30.21	4.68	20.60	17.25
Maximum	29.91	43.66	43.66	47.63	80.16	40.80	80.16	80.16	80.16	43.66	80.16	80.16
N	21	53	74	129	93	71	164	265	114	124	238	394
% of samples >1 μg/m³	81% (17)	26% (14)	42% (31)	46% (59)	73% (67)	42% (30)	59% (97)	57% (152)	74% (84)	35% (44)	54% (128)	54% (211)
% of samples >5 μg/m³	24% (5)	8% (4)	12% (9)	12% (15)	54% (49)	8% (6)	34% (55)	30% (79)	47% (54)	8% (10)	27% (64)	24% (94)