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Table 2 Average, standard deviation, range, and 5-95 th percentile of pollutant exposures for low and high-traffic routes

From: Cyclist route choice, traffic-related air pollution, and lung function: a scripted exposure study

Pollutant

N*

Mean ± SD

Min

Max

5th – 95th

UFPM – #/cm3

     

 Low-traffic

9

14,311 ± 15,381

2,771

376,495

4,621-29,882

 High-traffic

9

18,545 ± 42,482

1,900

1,033,188

4,148-51,265

CO – ppm

     

 Low-traffic

8

0.79 ± 0.39

0.20

4.90

0.40-1.50

 High-traffic

10

0.90 ± 0.64

0.10

10.60

0.40-1.90

PM2.5 – μg/m3

     

 Low-traffic

6

4.88 ± 1.41

2.25

20.96

2.65-6.84

 High-traffic

8

5.12 ± 1.86

2.25

27.40

2.94-7.10

BC – μg/m3

     

 Low-traffic

9

1.76 ± 2.58

0.11

63.83

0.50-4.03

 High-traffic

10

2.06 ± 3.23

0.1

53.53

0.37-5.06

  1. * N = number of sampling days with valid pollutant data (varied due to equipment failures).