Table 2.
Determined concentrations of selected analytes in samples collected in SPA 1
| SPA 1 date | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 29.01.2019 | 29.01.2019 | 30.01.2019 | 30.01.2019 | 05.02.2019 | 15.02.2019 | 19.02.2019 | 19.02.2019 | 26.02.2019 | 27.02.2019 | 05.03.2019 | 05.03.2019 | 06.03.2019 | |
| Before | After | Before | After | After | After | Before | After | After | After | Reception | After | After | |
| Determined compounds | Concentration (ppbv) | ||||||||||||
| Isopropyl alcohol | 20.64 | n.d. | n.d. | 20.92 | n.d. | n.d. | n.d. | n.d. | n.d. | n.d. | n.d. | n.d. | n.d. |
| Acetic acid | 24.67 | n.d. | n.d. | n.d. | n.d. | n.d. | n.d. | n.d. | n.d. | n.d. | n.d. | n.d. | n.d. |
| Toluene | n.d. | 0.79 | < LOQ | 0.90 | n.d. | 0.87 | < LOQ | < LOQ | 4.59 | 1.75 | < LOQ | < LOQ | < LOQ |
| Cycli3siloxane | 15.76 | 31.39 | 16.68 | 18.81 | 23.42 | 22.49 | 9.05 | 10.13 | 13.85 | 3.52 | 4.11 | 2.44 | n.d. |
| 2-Propanol | 11.13 | n.d. | 16.30 | 8.17 | 23.60 | 32.09 | n.d. | 16.19 | 9.23 | 16.91 | n.d. | n.d. | 10.39 |
| α-Pinene | < LOQ | 3.79 | 1.95 | 1.05 | 3.06 | 4.48 | 1.68 | 3.62 | 2.81 | 2.55 | 2.38 | < LOQ | 1.74 |
| Camphene | 1.74 | 2.44 | 1.37 | < LOQ | 2.00 | 2.26 | 2.04 | 3.14 | 2.09 | 4.29 | 0.96 | 0.90 | 1.24 |
| β-Pinene | < LOQ | 1.66 | 1.02 | < LOQ | 1.25 | 2.39 | 1.05 | 1.76 | 8.09 | < LOD | 0.90 | 0.93 | 1.13 |
| α-Phellandrene | 1.18 | 1.36 | 1.11 | 1.26 | 1.72 | 2.68 | 1.07 | 2.96 | 3.15 | 6.50 | 1.19 | n.d. | 2.79 |
| 3-Carene | < LOQ | < LOQ | < LOQ | 1.26 | < LOQ | < LOQ | < LOQ | 0.87 | < LOD | < LOQ | n.d. | 1.60 | < LOQ |
| d-Limonene | 11.02 | 28.37 | 7.11 | 3.91 | 11.89 | 13.06 | 26.28 | 34.75 | 30.16 | < LOD | 6.81 | 5.79 | 19.51 |
| β-Phellandrene | n.d. | < LOQ | < LOQ | n.d. | < LOQ | 0.92 | < LOQ | < LOQ | 2.18 | < LOQ | < LOQ | 1.79 | < LOQ |
| Eucalyptol | 0.85 | 1.82 | 1.02 | < LOQ | 1.64 | 1.34 | 2.98 | 7.82 | 6.06 | n.d. | 1.42 | < LOQ | 2.16 |
| Linalool | 5.10 | 4.88 | 3.13 | 0.80 | 5.16 | 6.31 | 4.65 | 7.05 | 4.58 | 7.86 | 2.77 | < LOQ | 2.39 |
| Undecan | n.d. | n.d. | n.d. | n.d. | 3.76 | 19.34 | 4.53 | n.d. | 5.05 | n.d. | 3.58 | n.d. | 3.73 |
| Borneol | n.d. | n.d. | n.d. | n.d. | n.d. | 8.13 | n.d. | 4.44 | 4.19 | n.d. | 2.28 | n.d. | 2.74 |
| Cedrene/cryophyllene | 3.52 | 4.96 | 2.44 | n.d. | n.d. | n.d. | 4.84 | 5.99 | 4.28 | n.d. | 2.30 | n.d. | n.d. |
| Geraniol | < LOQ | n.d. | < LOQ | n.d. | 0.97 | < LOQ | < LOQ | < LOQ | n.d. | n.d. | < LOQ | n.d. | n.d. |
| Citronellal | n.d. | n.d. | n.d. | n.d. | 2.46 | 2.70 | 2.31 | 5.71 | 8.08 | 1.82 | 2.27 | n.d. | 4.27 |
| α-Amyl cinnamyl aldehyde | n.d. | n.d. | n.d. | n.d. | n.d. | n.d. | n.d. | n.d. | n.d. | 2.99 | n.d. | n.d. | n.d. |
| 1,2-Dimethyl-3-nitrobenzene | n.d. | n.d. | n.d. | n.d. | n.d. | n.d. | n.d. | < LOQ | n.d. | n.d. | n.d. | < LOQ | n.d. |