Acute Toxicity of Fire Control Chemicals to Daphnia magna (Straus) and Selenastrum capricornutum (Printz)
Table 5
Table 5. Summary of the Ammonia Characteristics of Five Fire-Fighting Chemicals Used in Tests with S. capricornutum Exposed in ASTM Algal Assay Medium
| Chemical | Concentration (mg/liter) | IC50 (mg/liter) | Total ammonia (NH3-N, mg/liter) | Un-ionized ammoniaa (mg/liter) | ||
| 0 hr | 96 hr | 0 hr | 96 hr | |||
| Fire-Trol GTS-R | 3.6 | 18 | 0.74 | 0.01 | 0.00 | 0.00 |
| 17 | 3.39 | 0.12 | 0.01 | 0.00 | ||
| 47 | 9.57 | 7.83 | 0.03 | 0.02 | ||
| Fire-Trol LCG-R | 3.6 | 10 | 0.39 | 0.01 | 0.00 | 0.00 |
| 17 | 1.79 | 1.31 | 0.00 | 0.00 | ||
| 47 | 5.08 | 4.70 | 0.01 | 0.01 | ||
| Phos-Chek D75-F | 10 | 79 | 1.72 | 0.11 | 0.00 | 0.02 |
| 47 | 7.96 | 3.95 | 0.01 | 0.00 | ||
| 130 | 21.83 | 20.14 | 0.02 | 0.03 | ||
| Phos-Chek WD-881 | 2.16 | 24 | 0.04 | 0.02 | 0.00 | 0.00 |
| 10 | 0.03 | 0.02 | 0.00 | 0.00 | ||
| 28 | 0.03 | 0.02 | 0.00 | 0.00 | ||
| Silv-Ex | 3.6 | 15 | 0.06 | 0.01 | 0.00 | 0.00 |
| 17 | 0.13 | 0.01 | 0.00 | 0.00 | ||
| 47 | 0.34 | 0.01 | 0.00 | 0.00 | ||
| a Un-ionized ammonia, total ammonia adjusted for temperature and pH. | ||||||
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