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Nitrous oxide (N₂O) in 2015 (global mean)
Annual mean328.17 ppb
vs previous year+1.08 ppb
Rank of increase7 / 24
Max − min within year0.85 ppb
By month
| Month | Concentration | vs same month last year |
|---|---|---|
| Jan | 327.98 ppb | +1.37 |
| Feb | 328.04 ppb | +1.38 |
| Mar | 328.04 ppb | +1.32 |
| Apr | 327.97 ppb | +1.18 |
| May | 327.92 ppb | +1.09 |
| Jun | 327.95 ppb | +1.06 |
| Jul | 328.03 ppb | +1.00 |
| Aug | 328.12 ppb | +0.93 |
| Sep | 328.24 ppb | +0.90 |
| Oct | 328.42 ppb | +0.90 |
| Nov | 328.61 ppb | +0.89 |
| Dec | 328.77 ppb | +0.90 |
+0.91 ppb
+1.02 ppb
+0.84 ppb
+0.89 ppb
+1.15 ppb
+1.08 ppb
+0.78 ppb
+0.79 ppb
+1.17 ppb
+0.96 ppb
+1.13 ppb
Bars: yearly increase in the surrounding years. NOAA GML global monthly means.