| 10 min | 30 min | 60 min | 4 hr | 8 hr | |
|---|---|---|---|---|---|
| ppm | |||||
| AEGL 1 | 0.16 | 0.16 | 0.16 | 0.16 | 0.16 |
| AEGL 2 | 43 | 30 | 24 | 6.0 | 3.0 |
| AEGL 3 | 170 | 120 | 92 | 23 | 11 |
- Nitric acid AEGL Technical Support Document (PDF)(81 pp, 556 K)
US EPA
United States Environmental Protection Agency
| 10 min | 30 min | 60 min | 4 hr | 8 hr | |
|---|---|---|---|---|---|
| ppm | |||||
| AEGL 1 | 0.16 | 0.16 | 0.16 | 0.16 | 0.16 |
| AEGL 2 | 43 | 30 | 24 | 6.0 | 3.0 |
| AEGL 3 | 170 | 120 | 92 | 23 | 11 |