Table 2. Measured and Estimated NH3 and NH4+ Parameters.
| parameter | warm season | cold season |
|---|---|---|
| NH4+(μg m–3) | 1.8 ± 0.8 | 11.7 ± 8.4 |
| fNH4+ | 0 | 0.5 ± 0.1 |
| δ15N (NH4+)measured | 16.4 ± 2.8 | 4.0 ± 6.1 |
| δ15N (NH3)estimated | –16.7 ± 3.2 | –11.5 ± 3.5 |
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