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Table 3 October 17, 2003 Boston Indoor/Outdoor Air Quality Survey Smoke-Free Results Post-Ban

From: Air pollution in Boston bars before and after a smoking ban

Venue

Area (ft2)

Ceiling Ht. (ft)

Volume (m3)

Ave. b Persons Present (SD)

Ave.b Persons per 1000 ft2

Ave.b RSP, μg/m3 (SD)

% of Pre-ban RSP Level

Ave.b PPAH, ng/m3 (SD)

% of Pre-ban PPAH Level

CO ppm (ave.) (SD)

CO2 ppm (peak)

V0, L/s-occd,f,g

Pub #1

1600

13

589

54.6 (1.15)

34

7.47 (1.46)

3.8

8.56 (4.99)

13.8

1.04 (0.084)

950

10.8

Pub #2

4550

12.83

1653

99.3 (26)

21.8

16.3 (4.75)

38

1.61 (2.14)

25.2

2.89 (0.37)

900

12.1

Pub #3

5041

11

1570

123 (20.6)

24.4

1.39 (1.44)

2.4

5.98 (13.7)

15.7

1.30 (0.24)

800

16.0

Pub #4

1440

10

408

92.7 (22.5)

64.4

6.26 (1.05)

1.9

12.2 (5.13)

7.6

0.82 (0.18)

950

10.8

Pub #5

900

7.5

191

69 (1.73)

76.7

13.5 (3.16)

4.2

7.45 (4.00)

6.8

0.92 (0.09)

940

11.0

Pub #6

2037

9.58

552

50.3 (2.08)

24.7

525 (274)

170

1.55 (3.82)

3.8

7.94 (1.48)

1260

6.5

Pub #7

1655

9

422

48.3 (11.0)

29.0

1.49 (0.96)

1.2

2.14 (1.24)

14.0

0.48 (0.19)

720

21.5

Mean all Venues

   

76.7 (28.8)

39 (22)

81.6 (196)

41

5.64 (4.09)

9.1

2.20 (2.64)

931 (169)

12.7 (4.78)

Mean all but # 6 a

     

7.73 (6.13)

4.3

6.32 (4.02)

10.2

1.24 (0.85)

877 (96)

13.7 (4.3)

Non-smoking Hotel Room

   

1

 

2.14* (1.16)

33

2.42** (1.54)

86

0.56 (0.037)

573 (44)

 

Outdoors/In Transit h

     

7.82 c

42

9.05 c

57

1.32

487 e

 
  1. (SD = standard deviations of measurements in parentheses); *(91 min Ave., 68 min before venues, 23 min after); **(85 min Ave., 65 min before venues, 20 min after; a(excluding Pub #6). bAve. of 3 measurements~ten min apart;); c(Time-weighted mean). d(based on ASHRAE 62 formula); e(average minimum background); f(assumes Co = 487 ppm);g(assumes Co = 487 ppm); h(On sidewalks; crossing streets). Range in air temperature: 17.5 – 21.8°C, mean 19.8°C; range in relative humidity: 28%–48%, mean 38%.