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Table 2 Comparison between NAPS and sampled BTEX data

From: Assessing the distribution of volatile organic compounds using land use regression in Sarnia, "Chemical Valley", Ontario, Canada

 

NAPS Dataa

Sampling Datab

 

Monthly averagec

5 years averaged

2-week average

Benzene

1.93

1.40

1.07

Toluene

3.58

3.80

3.35

Ethylbenzene

0.64

0.57

0.56

(M+P) xylene

1.19

1.25

1.43

O-xylene

0.37

0.40

0.58

Total BTEX

7.71

7.25

7.19

  1. a Measured data at the National Air Pollution Surveillance (NAPS);
  2. b 2-week average data at 3 sampling points closest to the NAPS station;
  3. c The monthly average is the mean of the only 4 records available for October 2005;
  4. d 5 years average (2001 – 2005) concentration
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Environmental Health

ISSN: 1476-069X