Table 4.
Summary of acute toxicity results for three arctic species based on parent naphthalene concentrations measured at test initiation
| Test | Calanus glacialis | Calanus glacialis | Boreogadus saida | Myoxocephalus sp | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Early season | Late season | |||||||||||
| 12-d LC50 (mg/L) | 12-d LC50 (mg/L) | 96-h LC50 (mg/L) | 96-h LC50 (mg/L) | |||||||||
| WAF | BWWAF | CEWAF | WAF | BWWAF | CEWAF | WAF | BWWAF | CEWAF | WAF | BWWAF | CEWAF | |
| 1 | NC | 0.04 | 0.020 | NC | NT | 0.014 | 0.032 | 0.03 | 0.171 | 0.026 | 0.026 | 0.024 |
| 2 | NC | 0.031 | 0.024 | NC | NT | 0.067 | 0.035 | 0.035 | 0.046 | 0.035 | 0.042 | 0.025 |
| 3 | NC | 0.032 | 0.048 | NC | NT | 0.084 | 0.022 | 0.029 | 0.058 | 0.039 | 0.052 | 0.062 |
| 4 | NC | NC | 0.041 | NC | NT | 0.030 | NT | NT | 0.071 | 0.039 | 0.056 | 0.069 |
| 5 | NC | 0.111 | 0.008 | NC | NT | 0.077 | ||||||
| 6 | NC | 0.035 | 0.015 | |||||||||
| Mean | NC | 0.050 | 0.026 | NC | NT | 0.054 | 0.03 | 0.031 | 0.087 | 0.035 | 0.044 | 0.035 |
| SD | 0.034 | 0.016 | 0.031 | 0.007 | 0.003 | 0.057 | 0.006 | 0.013 | 0.024 | |||
WAF = water-accommodated fraction; BWWAF = breaking wave water-accommodated fraction; CEWAF = chemically enhanced water-accommodated fraction; LC50 = median lethal concentration; SD = standard deviation; NC = not calculable, undiluted WAF did not show significant toxicity; NT = not tested.