Table 5 Active sampling results for VOC collection / μg m -3
NAS location | NLS location | BL location | CUL location | TNA location | TCD location | NLW location | OULS location | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
A | B | C | A | B | C | A | B | C | A | B | C | A | B | C | A | B | C | A | B | C | A | B | C | |
Heptane | 0.4 | 1.3 | 22 | 0.4 | 0.3 | 2.8 | 0.6 | 0.4 | - | 2.2 | 0.3 | 0.3 | 0.8 | 0.5 | 2.2 | 0.2 | <0.1 | 0.1 | 0.9 | 0.2 | <0.1 | <0.1 | <0.1 | 26 |
Toluene | 1.9 | 1.0 | 103 | 1.9 | 1.2 | 1.6 | 1.7 | 2.2 | 0.9 | 72 | 6.1 | 68 | 4.5 | 2.6 | 1.7 | 1.2 | 0.9 | 0.6 | 0.5 | 0.2 | 1.7 | 1.6 | 1.1 | 1.3 |
Furfural | 7.2 | 1.9 | 0.9 | 0.2 | 0.9 | - | 59 | 18 | - | 16 | 110 | 2.4 | 2.3 | 6.5 | 0.6 | 18 | 3.9 | 1.7 | 7.1 | 6.4 | 1.0 | 9.0 | 20 | 0.9 |
Ethylbenzene | 0.1 | 0.1 | 1.3 | 0.2 | 0.2 | 0.3 | 1.0 | 0.5 | 0.2 | 4.7 | 0.4 | 0.4 | 0.8 | 0.4 | 0.4 | 0.3 | 0.1 | 0.1 | 0.2 | 0.1 | 0.4 | 1.4 | 0.3 | 0.2 |
o-xylene | 0.7 | 0.6 | 6.8 | 0.7 | 0.6 | 1.3 | 1.1 | 2.0 | 1.0 | 25 | 1.6 | 1.0 | 1.6 | 1.3 | 1.1 | 1.2 | <0.1 | 0.6 | 0.4 | 0.3 | 0.8 | 3.9 | 0.5 | 0.5 |
p-xylene | 0.5 | - | 2.8 | 0.3 | 0.4 | 0.5 | 8.0 | 1.1 | 0.4 | 11 | 0.9 | 0.6 | 0.5 | 0.5 | 0.5 | 0.6 | <0.1 | 0.2 | 0.6 | <0.1 | <0.1 | 2.7 | 0.5 | 0.3 |
Cyclohexanone | < 0.1 | < 0.1 | < 0.1 | <0.1 | < 0.1 | <0.1 | <0.1 | <0.1 | <0.1 | <0.1 | < 0.1 | 4.2 | <0.1 | <0.1 | <0.1 | 0.6 | <0.1 | <0.1 | <0.1 | <0.1 | <0.1 | <0.1 | <0.1 | <0.1 |
Nonane | < 0.1 | 1.5 | 3.6 | 2.3 | 2.6 | 1.9 | 28 | <0.1 | <0.1 | 13 | 5.9 | 10 | <0.1 | 0.5 | <0.1 | 0.3 | 3.4 | 1.6 | 1.9 | 3.7 | 5.0 | 29 | 1.1 | 1.4 |
4 ethyltoluene | < 0.1 | < 0.1 | < 0.1 | <0.1 | 0.2 | 0.3 | 15 | <0.1 | <0.1 | 13 | 15 | <0.1 | <0.1 | 0.5 | <0.1 | <0.1 | <0.1 | <0.1 | 0.2 | - | 1.2 | <0.1 | <0.1 | <0.1 |
Benzaldehyde | 2.0 | 2.2 | 2.5 | 0.8 | 1.0 | 1.7 | 4.5 | 3.4 | 0.6 | 54 | 15 | 6.7 | 0.7 | 2.1 | 1.6 | 1.7 | 0.5 | <0.1 | 2.0 | 2.2 | 1.2 | <0.1 | 2.9 | 1.6 |
1,3,5 trimethylbenzene | < 0.1 | <0.1 | <0.1 | <0.1 | 0.1 | 0.1 | 7.2 | 0.2 | - | 8.3 | 5.2 | <0.1 | <0.1 | 0.2 | 0.2 | 0.4 | <0.1 | <0.1 | <0.1 | 0.3 | <0.1 | <0.1 | 0.2 | <0.1 |
2 ethyltoluene | < 0.1 | < 0.1 | < 0.1 | <0.1 | < 0.1 | <0.1 | 4.9 | <0.1 | <0.1 | 5.3 | <0.1 | <0.1 | <0.1 | <0.1 | <0.1 | 0.2 | <0.1 | <0.1 | <0.1 | <0.1 | <0.1 | 5.8 | <0.1 | <0.1 |
1,2,4, trimethylbenzene | < 0.1 | < 0.1 | < 0.1 | <0.1 | < 0.1 | 0.9 | 23 | <0.1 | <0.1 | 38 | 23 | <0.1 | <0.1 | <0.1 | <0.1 | 2.5 | 1.2 | <0.1 | <0.1 | <0.1 | <0.1 | 10 | 2.6 | <0.1 |
Decane | 0.7 | 1.6 | 4.8 | 3.8 | 7.8 | 5.8 | 8.3 | 13 | 3.6 | <0.1 | 32 | 66 | 1.4 | <0.1 | <0.1 | 0.7 | 16 | 3.7 | 9.6 | 23 | 12 | 73 | 6.6 | 5.1 |
Limonene | <0.1 | 2.3 | 4.7 | 0.6 | 1.0 | 34 | <0.1 | <0.1 | 5.3 | <0.1 | 1.7 | 2.8 | <0.1 | <0.1 | <0.1 | 0.5 | 0.5 | <0.1 | - | 7.0 | <0.1 | <0.1 | 1.5 | 2.0 |
Acetophenone | <0.1 | 0.1 | 1.1 | 0.4 | <0.1 | 0.8 | <0.1 | <0.1 | <0.1 | <0.1 | 1.0 | <0.1 | 0.2 | 0.3 | 0.5 | 0.4 | <0.1 | <0.1 | 0.4 | - | 0.5 | <0.1 | <0.1 | <0.1 |
Camphor | 0.4 | <0.1 | <0.1 | 1.8 | <0.1 | <0.1 | <0.1 | <0.1 | 0.4 | <0.1 | 0.2 | <0.1 | 0.8 | <0.1 | <0.1 | <0.1 | <0.1 | <0.1 | <0.1 | <0.1 | <0.1 | <0.1 | <0.1 | <0.1 |