TABLE 5.
Comparison of EC50 values in laboratory medium versus creek water
| Chemical | Laboratory medium
|
Creek water
|
||
|---|---|---|---|---|
| EC50a (M) | Limit of detection (M) | EC50 (M) | Limit of detection (M) | |
| Testosterone | (1.7 ± 0.35) × 10−8 | 2.5 × 10−9 | (1.3 ± 0.39) × 10−8 | 2.5 × 10−9 |
| DHT | (1.2 ± 0.97) × 10−8 | 5.0 × 10−10 | (2.0 ± 0.25) × 10−8 | 5.0 × 10−10 |
EC50 values represent means and standard deviations.