Table 8.1.3.6 Acute Toxicity of Chlorophenols to the Grass Shrimp Palaemonetes pugio.

96-h LC₅₀ (95% limits) in mg/L

intermolt shrimp

molting shrimp

2,4-DCP

2.55 (2.28-2.86)

2.16 (1.49-2.77)

2,4,5-TCP

1.12 (0.92-1.43)

0.64 (0.36-0.80)

2,4,6-TCP

3.95 (3.28-4.95)

1.21 (1.11-1.31)

2,3,4,5-TTCP

0.86 (0.73-0.98)

0.37 (0.35-0.39)

2,3,4,6-TTCP

3.70 (2.98-5.25)

0.81 (0.64-0.89)

2,3,5,6-TTCP

4.10 (3.30-5.31)

1.17 (1.08-1.27)

2,3,4,5,6-PCP

2.50 (1.91-3.29)

0.44 (0.18-0.67)