| 10 min | 30 min | 60 min | 4 hr | 8 hr | ||
|---|---|---|---|---|---|---|
| ppm | ||||||
| AEGL 1 | 30 | 30 | 30 | 30 | 30 | |
| AEGL 2 | 220 | 220 | 160 | 110 | 110 | |
| AEGL 3 | 2,700 | 1,600 | 1,100 | 550 | 390 | |
- Ammonia AEGL Technical Support Document (PDF)(81 pp, 676 K)
US EPA
United States Environmental Protection Agency
| 10 min | 30 min | 60 min | 4 hr | 8 hr | ||
|---|---|---|---|---|---|---|
| ppm | ||||||
| AEGL 1 | 30 | 30 | 30 | 30 | 30 | |
| AEGL 2 | 220 | 220 | 160 | 110 | 110 | |
| AEGL 3 | 2,700 | 1,600 | 1,100 | 550 | 390 | |