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Nitrous oxide (N₂O) in 2003 (global mean)
Annual mean317.63 ppb
vs previous year+0.69 ppb
Rank of increase20 / 24
Max − min within year0.82 ppb
By month
| Month | Concentration | vs same month last year |
|---|---|---|
| Jan | 317.29 ppb | +0.36 |
| Feb | 317.34 ppb | +0.37 |
| Mar | 317.41 ppb | +0.45 |
| Apr | 317.48 ppb | +0.58 |
| May | 317.51 ppb | +0.66 |
| Jun | 317.53 ppb | +0.70 |
| Jul | 317.56 ppb | +0.74 |
| Aug | 317.63 ppb | +0.81 |
| Sep | 317.77 ppb | +0.90 |
| Oct | 317.93 ppb | +0.94 |
| Nov | 318.04 ppb | +0.91 |
| Dec | 318.11 ppb | +0.87 |
+0.58 ppb
+0.69 ppb
+0.63 ppb
+0.66 ppb
+0.91 ppb
+0.62 ppb
+1.06 ppb
Bars: yearly increase in the surrounding years. NOAA GML global monthly means.