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5 -Chlorovaleryl chloride rapidly hydrolyses in contact with water to form 5 -chlorovaleric acid (CAS 1119 -46 -6) and hydrogen chloride (CAS 7647-01-0). Therefore, the relevant key aquatic toxicity data for both the parent substance and for the hydrolysis products is tabulated below.

Aquatic toxicity data for 5 -chlorovaleryl chloride (parent substance):

Study

Species

Endpoint

Effect value

Fish acute toxicity

D. rerio

96 -h LC50

55 mg/L

Fish chronic toxicity

No information available

-

-

Aquatic invertebrates acute toxicity

D. magna

48 -h EC50

54.5 mg/L

Aquatic invertebrates chronic toxicity

No information available

-

-

Algae acute

No information available

-

-

Algae chronic

No information available

-

-

  Microorganisms

 Activated sludge

30 -min EC10

> 1000 mg/L

Aquatic toxicity data for 5 -chlorovaleric acid (hydrolysis product):

No data available.

Aquatic toxicity data for hydrogen chloride (hydrolysis product):

Study

Species

Endpoint

Effect value

Fish acute toxicity

C. carpio

96-h LC50

4.92 mg/L (pH 4.3)

Fish chronic toxicity

No information available

-

-

Aquatic invertebrates acute toxicity

D. magna

48-h LC50

0.492 mg/L (pH 5.3)

Aquatic invertebrates chronic toxicity

No information available

-

-

Algae acute

P. subcapitata

72-h ErC50

0.492 mg/L (pH 5.3)

Algae chronic

P. subcapitata

72-h NOErC

0.097 mg/L (pH 6.0)