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Nitrous oxide (N₂O) in 2005 (global mean)
Annual mean318.92 ppb
vs previous year+0.66 ppb
Rank of increase21 / 24
Max − min within year0.98 ppb
By month
| Month | Concentration | vs same month last year |
|---|---|---|
| Jan | 318.87 ppb | +0.69 |
| Feb | 318.89 ppb | +0.70 |
| Mar | 318.86 ppb | +0.70 |
| Apr | 318.78 ppb | +0.64 |
| May | 318.66 ppb | +0.52 |
| Jun | 318.59 ppb | +0.46 |
| Jul | 318.65 ppb | +0.51 |
| Aug | 318.77 ppb | +0.60 |
| Sep | 318.90 ppb | +0.68 |
| Oct | 319.11 ppb | +0.77 |
| Nov | 319.36 ppb | +0.80 |
| Dec | 319.57 ppb | +0.81 |
+0.58 ppb
+0.69 ppb
+0.63 ppb
+0.66 ppb
+0.91 ppb
+0.62 ppb
+1.06 ppb
+0.77 ppb
+0.91 ppb
Bars: yearly increase in the surrounding years. NOAA GML global monthly means.