Table 8.2.6.1 The Effects of Chlorophenols on Aquatic Insects.

mg/L

chlorophenol

species and conditions

effect

ref.

Tanytarsus dissimilis chironomid

>13.5

2,4,6-TCP

48-h LC₅₀

245

19.0

2,3,4,5,6-PCP

18.9C, pH 8.6, 3 rd to 4 th instar

96-h LC₅₀

114

31.3

2,3,4,5,6-PCP

18.5C, pH 8.5, 3 rd to 4 th instar

96-h LC₅₀

114

46

2,3,4,5,6-PCP

flow through bioassay

48-h EC₅₀

550

Chironomus riparius midge

0.384

2,3,4,5,6-PCP

25C, pH 4.0, range 295-435

24-h EC₅₀

6

0.465

2,3,4,5,6-PCP

25C, pH 6.0, range 446-496

24-h EC₅₀

6

1.984

2,3,4,5,6-PCP

25C, pH 9.0, range 1385-2691

24-h EC₅₀

6

631

2,3,4,5,6-PCP

35C, range 581-674

LC₅₀

5

1176

2,3,4,5,6-PCP

15C, range 816-1349

LC₅₀

5

1556

2,3,4,5,6-PCP

25C, range 1500-1631

LC₅₀

5

Aedes aegypti mosquito

1.8

2,3,4,5,6-PCP

26C, 3rd instar

NOEL

112

7.2

2,3,4,5,6-PCP

26C, 3rd instar

48-h LC₅₀

112

0.11

2,3,4,5,6-PCP

20C, Chironomus thummi midge

48-h LC₅₀

197

Culex pipiens mosquito

24

2,3,4,5,6-PCP

26C, 3rd instar

NOEL

112

34

2,3,4,5,6-PCP

26C, 3rd instar

48-h LC₅₀

112

Callibacetes skokianus mayfly

1.3

2,3,4,5,6-PCP

25.3C, pH 7.8

96-h LC₅₀

113

1.70

2,3,4,5,6-PCP

7.3-17.4C, pH 7.5-8.2, river water

96-h LC₅₀

113

1.78

2,3,4,5,6-PCP

13C, pH 7.6

96-h LC₅₀

206

Philarctus quaeris caddis fly

1.20

2,3,4,5,6-PCP

7.3-17.4C, pH 7.5-8.2, river water

96-h LC₅₀

206

1.26

2,3,4,5,6-PCP

13C, pH 7.6

96-h LC₅₀

113

5.9

2,3,4,5,6-PCP

Claeon dipterum mayfly, 20C

48-h LC₅₀

197

16.0

2,3,4,5,6-PCP

Claeon dipterum mayfly

48-h LC₅₀

223

0.38

2,3,4,5,6-PCP

Nemoura cinerea stonefly, 20C

48-h LC₅₀

197

5.0

NaPCP

Ischnura sp., nymph, 16C, pH 7.6

1-h LC₀

69

42.0

2,3,4,5,6-PCP

Ischnura elegans damselfly, 20C

48-h LC₅₀

197

11.0

2,3,4,5,6-PCP

Corixa punctata water boatman

48-h LC₅₀

197

15.0

NaPCP

aquatic insects but not all arthropods

LC

162

4.6-5.0

NaPCP

Chironomidae pH 7.6, 16C

1-h LC100

69

5.0

NaPCP

Epicordulia sp., dragonfly nymphs, pH 7.6, 16C

1-h LC₀

69