Table 3. Greenhouse gases diffusive fluxes at the air-water interface of rivers around the world.
| Location | River/Reservoir Immediate Downstream (year of measurement) | Dissolved surface GHGs (µmol L−1) | Diffusive flux (mmol m−2 d−1) | References | ||
|---|---|---|---|---|---|---|
| CH4 | CO2 | CH4 | CO2 | |||
| Switzerland | Wohlen Reservoir (2013) | 0.1–1.3 | – | 0.13–3.0 | – | DelSontro et al. (2016a) |
| Scotland | River Tay (2010) | – | – | 0.1–1.0 | 12–58 | Harley (2013) |
| China | Tianjin River (2015) | 1.4 ± 1.2 | 38 ± 8.6 | 1.7 ± 1.6 | 20 ± 10 | Hu et al. (2018) |
| Brazil | Kariba Dam (2013) | <0.1 | 106 | – | – | Teodoru et al. (2015) |
| Itezhi Tezhi Dam (2013) | <0.1 | 42 | 1.2 | 13 | ||
| Cabora Bassa Dam (2013) | – | – | – | 34 | ||
| Petit-Saut Reservoir (2003) | 2.5 ± 2.6 | 108 ± 63 | 59 | 1,003 | Abril et al. (2005) | |
| Petit-Saut Reservoir (2005) | 48 | 311 | 84 ± 38 | 802 ± 364 | Guérin et al. (2006) | |
| Samuel Reservoir (2004) | 40 | 337 | 12 ± 13 | 1,494 ± 963 | ||
| Balbina Reservoir (2004) | 77 ± 7 | 203 ± 27 | 114 ± 66 | 412 ± 95 | ||
| Balbina Reservoir (2005) | 0.4-140 | – | 105.4 | – | Kemenes, Forsberg & Melack (2007) | |
| Balbina Reservoir (2006) | – | 161 | – | 109 | Kemenes, Forsberg & Melack (2011) | |
| (0.5–287) | ||||||
| Indonesia | Batanghari River (2009) | 98 ± 0.7 | – | 20 ± 18 | – | Wit et al. (2015) |
| Indragiri River (2013) | 236 ± 22 | – | 232 ± 61 | – | ||
| Siak River (2013) | 350 ± 22 | – | 320 ± 61 | – | ||
| Malaysia | Maludam River (2014) | 319 ± 37 | – | 289 ± 155 | – | Müller et al. (2015) |
| Maludam River (2015) | 343 ± 6 | – | 125 ± 136 | – | ||
| Terengganu River (2018) | 9.1 | 92 | 0.8 | 14 | This study, median | |
| 0.3–65 | 15–445 | 0.06–20 | 0.7–136 | range | ||