Table 4.2.3.7 The Effect of pH on Chlorophenol Toxicity in guppies, Lebistes reticulata.

Chlorophenol
congeners

pH 5.0

pH 6.0 to
pH 6.1

pH 7.0 to
pH 7.3

pH 7.8 to
pH 8.0

ratio of:
pH 8/pH 6

2-MCP

7.1

11.2, 13.8 *

13.5

1.9

3-MCP

6.4

6.4

7.9

1.2

4-MCP

6.3 *

7.8 *

8.5 *

9.0 *

1.1

2,3-DCP

2,4-DCP

3.3, 3.5 *

4.2, 5.5 *

5.9, 7.6 *

2.0

2,5-DCP

2,6-DCP

3.9 *

7.8 *

17.9 *

4.6

3,4-DCP

3,5-DCP

2,3,4-TCP

2,3,5-TCP

0.9

1.6

4.7

5.2

2,3,6-TCP

2,4,5-TCP

1.0 *

1.2 *

3.1 *

3.1

2,4,6-TCP

0.6 *

0.9 *

2.3 *

7.9 *

3,4,5-TCP

2,3,4,5-TTCP

0.4

0.8

2.3

5.8

2,3,4,6-TTCP

0.3 *

1.1 *

3.7 *

12.3

2,3,5,6-TTCP

0.4

1.4

3.9

9.8

2,3,4,5,6-PCP

0.04 *

0.11 *

0.45 *

0.91 *

8.3