Table 2. Sum of SOA tracers (ng/m3) from isoprene and monoterpenes at different locations.
| isoprene SOA tracers | monoterpene SOA tracers | ||||
|---|---|---|---|---|---|
| locations | Range | Mean | Range | Mean | reference |
| East Antarctica | 0.24–6.0 | 1.3 | 0.075–0.62 | 0.28 | This study |
| Prydz Bay | 0.28–6.0 | 1.9 | 0.075–0.51 | 0.24 | This study |
| West Antarctica | 0.018–0.81 | 0.27 | 0.048–1.7 | 0.26 | This study |
| Southern Ocean | 0.26–24 | 12 | 0.046–1.9 | 0.66 | This study |
| Australian adjacent sea | 0.34–10 | 4.2 | 0.046–1.9 | 0.66 | This study |
| Southeast Asia | 3.1–22 | 11 | 0.045–0.48 | 0.19 | This study |
| _* | 22 | _ | 5.3** | Fu, et al.25 | |
| North Indian Ocean | _ | 5.1 | _ | 2.7** | Fu, et al.25 |
| Western North Pacific | 1.2–35 | 18 | 0.15–17 | 8.6 | This study |
| 0.11–0.51 | 0.36 | 0.60–2.9** | 1.3** | Fu, et al.25 | |
| Eastern North Pacific | 0.17–8.3 | 3.6 | 0.020–1.5** | 4.1** | Fu, et al.25 |
| North Atlantic | 0.20–0.54 | 0.37 | 0.55–0.79** | 0.67** | Fu, et al.25 |
| East China Sea | _ | 36 | _ | 20 | This study |
| Sea of Japan | 22–27 | 24 | 5.5–18 | 11 | This study |
| Sea of Okhotsk | _ | 35 | _ | 9.9 | This study |
| Bering Sea | 3.9–23 | 12 | 0.87–11 | 3.9 | This study |
| the Arctic Ocean | 1.4–13 | 4.6 | 0.73–5.6 | 1.9 | This study |
| 0.16–32 | 4.0 | *** | 0.63** | Fu, et al.26 | |
| 90°S–60°S | 0.023–6.0 | 0.87 | 0.048–0.62 | 0.20 | This study |
| 60°S–30°S | 0.018–24 | 3.1 | 0.046–1.7 | 0.30 | This study |
| 30°S–30°N | 1.2–22 | 9.2 | 0.045–1.9 | 0.56 | This study |
| 30°N–60°N | 13–36 | 25 | 3.6–20 | 11 | This study |
| 60°N–90°N | 1.4–13 | 5.3 | 0.73–5.8 | 2.0 | This study |
| Southern Hemisphere | 0.018–24 | 3.3 | 0.045–1.9 | 0.31 | This study |
| Northern Hemisphere | 1.2–36 | 14 | 0.13–20 | 5.8 | This study |
*“_” means only one sample in this region.
**The monoterpene SOA tracers are the sum of PNA, PA, MBTCA and HGA.
***The range of monoterpene SOA tracers reported by Fu, et al.26 was not compared here because four tracers (3-(2-hydroxyethyl)-2,2-dimethylcyclobutanecarboxylic acid, 3-acetylglutaric acid, 3-acetyladipicacid and 3-isopropylglutaric acid) counted in the sum of monoterpene SOA tracers in the reference were not measured in this study.