Research Article
Spatial Variability and Application of Ratios between BTEX in Two Canadian Cities
Table 7
Ratios calculated using three nearby monitoring sites in Sarnia and NAPS data in Sarnia and Windsor.
| | T/B | (m + p)/B | O/B | (m + p)/E | B : T : E : X |
| Sarnia | | | | | | NAPS October 1 | 1.92 | 0.78 | 0.23 | 2.22 | 2.86 : 5.50 : 1 : 2.88 | NAPS October 7 | 1.82 | 0.76 | 0.29 | 2.60 | 3.40 : 6.20 : 1 : 3.6 | NAPS October 19 | 1.80 | 0.45 | 0.15 | 1.40 | 3.11 : 5.59 : 1 : 1.88 | NAPS October 25 | 1.67 | 0.74 | 0.26 | 2.63 | 3.55 : 5.94 : 1 : 3.54 | October 1, 7, & 19, 25 mean | 1.80 | 0.68 | 0.23 | 2.21 | 3.23 : 5.81 : 1 : 2.98 | Site 15 | 3.21 | 1.43 | 0.57 | 2.59 | 1.87 : 5.83 : 1 : 3.62 | Site 16 | 2.53 | 1.00 | 0.41 | 2.42 | 2.42 : 6.11 : 1 : 3.42 | Site 17 | 2.74 | 1.30 | 0.53 | 2.62 | 2.01 : 5.51 : 1 : 3.68 | 3 nearby sites mean | 2.83 | 1.24 | 0.50 | 2.54 | 2.10 : 5.82 : 1 : 3.57 | % Difference between NAPS and 37 sites | | | | | | Median | 60.4 | 102 | 139 | 22.0 | | Min | −20.7 | −15.2 | −2.56 | −24.5 | | Max | 154 | 312 | 377 | 39.0 | |
| Windsor | | | | | | NAPS October 25 | 2.60 | 1.88 | 0.53 | 3.00 | 1.59 : 4.15 : 1 : 3.85 | % Difference between NAPS and 42 sites | | | | | | Median | 32.4 | −0.26 | 12.5 | −7.64 | | Min | −45.3 | −1.50 | −56.9 | −40.2 | | Max | 163 | 0.82 | 78.4 | 3.07 | |
|
|