Table 7.1.2 The Effects of Chlorophenols on Bacteria.

chlorophenol

mg/L

species/conditions/test parameters

effect

ref.

Spirillum volutans

3,5-DCP

5.0

mobility

IC₅₀

47

Bacillus cereus (resazurin assay)

2,3,4,5,6-PCP

3.9

range 2.5-5.2 depends on carrier

EC₅₀

179

2,3,4,5,6-PCP

9.5

range 8.0-11.0 depends on

EC₅₀

179

Pseudomonas fluorescens

2,3,4,5,6-PCP

8.6

at maximum stationary phase

LC₅₀

557

2,3,4,5,6-PCP

10

1-h LC₀

557

2,3,4,5,6-PCP

18

at early log phase

LC₅₀

557

2,3,4,5,6-PCP

25

1-h LC64

557

2,3,4,5,6-PCP

29

at mid log phase

LC₅₀

557

2,3,4,5,6-PCP

50

1-h LC₈₄

557

2,3,4,5,6-PCP

75

1-h LC₁₀₀

557

sewage or activated sludge cultures

2-MCP

380

sewage, reduction in respiration rate

IC₅₀

196

4-MCP

178

sewage, reduction in respiration rate

IC₅₀

196

2,4-DCP

49.5

sewage, reduction in respiration rate

IC₅₀

196

2,4-DCP

50

sludge, TTC dehydrogenase test

EC

512

2,4-DCP

500

sludge, TTC dehydrogenase test

EC₅₀

512

3,4-DCP

74

from sewage, 22C

1-h IC₅₀

47

3,5-DCP

4.7

reduction in respiration rate

3-h EC₅₀

44

3,5-DCP

7.42

mixed culture, reduction in respiration

IC₅₀

46

3,5-DCP

11

reduction in respiration rate

3-h EC₅₀

44

3,5-DCP

11.94

mixed culture, reduction in respiration

IC₅₀

46

3,5-DCP

12.5

from sewage, reduction in respiration

IC₅₀

196

3,5-DCP

18

sludge, reduction in respiration

3-h EC₅₀

238

2,4,5-TCP

8.3

sludge, reduction in respiration

3-h EC₅₀

237

2,4,5-TCP

8.3

sludge, reduction in respiration

3-h EC₅₀

238

TCP

60

inhibition of gas production, lab. static bioassay in fresh water

EC₅₀

461

chlorophenol

mg/L

species/conditions/test parameters

effect

ref.

PCP

2.5

sludge, reduction in respiration rate

3-h IC₅₀

196

PCP

20

sludge, reduction in growth rate

3-M EC₅₀

45

PCP

21

sludge, reduction in respiration

3-h EC₅₀

237

PCP

21

sludge, reduction in respiration

3-h EC₅₀

238

PCP

36

activated sludge, reduction in growth

1-W EC₅₀

45

PCP

>40

sludge, reduction in nitrification

EC₅₀

45

PCP

49

sludge, reduction in respiration

1-M EC₅₀

45

PCP

61

sludge, reduction in respiration

1-W EC₅₀

45

PCP

134

sludge, reduction in respiration

3-M EC₅₀

45

Photobacterium phosphoreum
(microtox)

2-MCP

14.7

reduced light output

15-m EC₅₀

240

2-MCP

6.8

reduced light output, static bioassay

30-m EC₅₀

367

3-MCP

14.1

reduced light output, static bioassay

30-m EC₅₀

367

2,3-DCP

4.6

reduced light output

15-m EC₅₀

240

2,4-DCP

5.5

reduced light output, static bioassay

30-m EC₅₀

367

3,5-DCP

4.15

reduced light output, 15C

5-m IC₅₀

46

3,5-DCP

4.24

reduced light output, 15C

10-m IC₅₀

46

3,5-DCP

4.47

reduced light output, 15C

5-m IC₅₀

46

3,5-DCP

4.70

reduced light output, 15C

30-m IC₅₀

46

2,3,4-TCP

1.1

reduced light output

15-m EC₅₀

240

2,3,4-TCP

1.1

reduced light output, distilled water

15-m EC₅₀

435

2,3,4-TCP

1.25

reduced light output

30-m EC₅₀

367

2,3,4-TCP

1.4

reduced light output, natural water #3

15-m EC₅₀

435

2,3,4-TCP

1.4

reduced light output, natural water #5

15-m EC₅₀

435

2,3,4-TCP

1.61

reduced light output

15-m EC₅₀

367

2,3,4-TCP

1.7

reduced light output, natural water #2

5-m EC₅₀

435

2,3,4-TCP

1.76

reduced light output

15-m EC₅₀

240

2,3,4-TCP

1.8

reduced light output, natural water #1

15-m EC₅₀

435

2,3,4-TCP

2.2

reduced light output, natural water #4

15-m EC₅₀

435

2,3,5-TCP

1.11

reduced light output, static bioassay

30-m EC₅₀

367

2,3,5-TCP

1.37

reduced light output, static bioassay

15-m EC₅₀

367

2,3,5-TCP

1.76

reduced light output, static bioassay

5-m EC₅₀

367

chlorophenol

mg/L

species/conditions/test parameters

effect

ref.

2,3,4,5-TTCP

0.176

reduced light output

30-m EC₅₀

367

2,3,4,5-TTCP

0.207

reduced light output

15-m EC₅₀

367

2,3,4,5-TTCP

0.335

reduced light output

5-m EC₅₀

367

2,3,4,5-TTCP

0.4

reduced light output

15-m EC₅₀

240

2,3,4,5-TTCP

0.4

reduced light output, de-ionized water

15-m EC₅₀

435

2,3,4,5-TTCP

0.5

reduced light output, natural water #1

15-m EC₅₀

435

2,3,4,5-TTCP

0.6

reduced light output, natural water #4

15-m EC₅₀

435

2,3,4,5-TTCP

0.7

reduced light output, natural water #5

15-m EC₅₀

435

2,3,4,5-TTCP

1.5

reduced light output, natural water #2

15-m EC₅₀

435

2,3,4,5-TTCP

1.7

reduced light output, natural water #3

15-m EC₅₀

435

2,3,4,6-TTCP

1.27

reduced light output

30-m EC₅₀

367

2,3,4,6-TTCP

1.46

reduced light output

15-m EC₅₀

367

2,3,4,6-TTCP

1.88

reduced light output

5-m EC₅₀

367

2,3,5,6-TTCP

2.21

reduced light output

30-m EC₅₀

367

2,3,5,6-TTCP

2.54

reduced light output

15-m EC₅₀

367

2,3,56-TTCP

2.78

reduced light output

5-m EC₅₀

367

2,3,4,5,6-PCP

0.48

reduced light output, 15C

30-m EC₅₀

181

2,3,4,5,6-PCP

0.61

reduced light output, 15C

15-m EC₅₀

181

2,3,4,5,6-PCP

0.65

reduced light output, 15C, pH 6.0

10-m EC₅₀

178

2,3,4,5,6-PCP

0.72

reduced light output, 15C, pH 6.5

10-m EC₅₀

178

2,3,4,5,6-PCP

0.79

reduced light output, 15C, pH 7.0

10-m EC₅₀

178

2,3,4,5,6-PCP

0.8

reduced light output, 20C

10-m EC₅₀

178

2,3,4,5,6-PCP

0.8

reduced light output, 20C

15-m EC₅₀

178

2,3,4,5,6-PCP

0.8

reduced light output, 20C

30-m EC₅₀

178

2,3,4,5,6-PCP

0.8

reduced light output, 15C

30-m EC₅₀

178

2,3,4,5,6-PCP

0.82

reduced light output, 15C, pH 7.5

10-m EC₅₀

178

2,3,4,5,6-PCP

0.9

reduced light output, 15C

15-m EC₅₀

178

2,3,4,5,6-PCP

1.0

reduced light output, 15C

10-m EC₅₀

178

2,3,4,5,6-PCP

1.0

reduced light output, 15C

15-m EC₅₀

182

2,3,4,5,6-PCP

1.03

reduced light output, 15C

5-m EC₅₀

181

2,3,4,5,6-PCP

1.1

reduced light output, 20C

5-m EC₅₀

178

2,3,4,5,6-PCP

1.14

reduced rate of ATP formation

EC₅₀

239

2,3,4,5,6-PCP

1.5

reduced light output, 15C

5-m EC₅₀

178

2,3,4,5,6-PCP

2.23

reduced photosynthesis

EC₅₀

239

2,3,4,5,6-PCP

3.51

reduced growth rate

EC₅₀

239

chlorophenol

mg/L

species/conditions/test parameters

effect

ref.

dairy cultures
(kefir, butter, cheese and yogurt)

2,4,5-TCP

100

growth inhibition

EC₁₀₀

486

2,3,4,5,6-PCP

100

growth inhibition

EC₁₀₀

486

Pseudomonas sp.

2,4-DCP

25

growth inhibition

EC₁₀₀

511

Bacillus subtilis

2,3,4,5,6-PCP

1.3

inhibition of proline and glycine uptake

EC₁₀₀

568