TABLE 1.
Fish group | Concentration (mg L−1) | Number of exposed | Number of death fish after 24 h |
---|---|---|---|
1 | 0 | 10 | 0 |
2 | 0.5 | 10 | 0 |
3 | 1 | 10 | 1 |
4 | 5 | 10 | 2 |
5 | 10 | 10 | 3 |
6 | 20 | 10 | 7 |
7 | 50 | 10 | 10 |
Point | Lethal concentration (mg L−1) | 95% confidence limit |
---|---|---|
LC1 | 0.626 | 0.421–0.831 |
LC5 | 1.407 | 0.95–1.864 |
LC10 | 2.169 | 1.912–2.426 |
LC15 | 2.903 | 2.51–3.296 |
LC50 | 10.05 | 9.73–10.37 |
LC85 | 34.202 | 31.10–37.304 |
LC95 | 70.55 | 64.42–76.68 |