| Year | Country | Site | Type | Value µmol∙m−2∙s−1 | Source |
| 2006-2007 | Scotland | 55˚480N, 3˚14035W | Peatlands | 0.10 ± 0.02 | Dinsmore et al. (2009) [69] |
| 1995 | Scotland | 55˚050N | Bog | 0.01 | Clymo et al. (1995) [70] |
| 2003-2005 | Ireland | 51˚550N | Bog | 0.2 | Laine et al. (2007) [71] |
| 2003-2008 | Ireland | 51˚550N | Bog | 0.01 | Koehler et al. (2011) [72] |
| 2011-2014 | USA | N47˚30.4760; W93˚27.162 | Minnesota peatland | 0.3 - 0.5 | Hanson et al. (2016) [68] |
| 2009-2011 | USA | 47.505N, −93.489W | Fen | 0.22 - 0.29 | Olson et al. (2013) [52] |
| 2008-2011 | USA | 46˚190N, 86˚030W | Fen | 0.002 - 0.011 | Ballantyne et al. (2014) [73] |
| 2002-2003 | Canada | 45˚250N, 75.48˚W | Bog | 0.7 | Moore et al. (2011) [74] |
| 2009-2010 | Canada | 45.41˚N, 75.52˚W | Bog | 0.6 | Lai et al. (2014) [75] |
| 1998-2004 | Canada | 45.411N, 75.481W | Bog | 0.06 - 0.08 | Roulet et al. (2007) [12] |
| 2003-2004 | Canada | 45˚410N | Bog | 0.01 - 0.03 | (Blodau et al. 2007) [76] |
| 1998 | Canada | 45˚330N, 66.49W | fen and bog | 0.17 | Moore and Knowles (1990) [77] |
| 2005 | England | 54˚650N, 2˚45’W | Blanket peat | 0.02 - 0.06 | McNamara et al. (2008) [67] |