3-(chloromethyl)heptane

Ecotoxicological Summary

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:

PNEC aqua (freshwater)

PNEC value:

0 mg/L

Assessment factor:

1 000

Extrapolation method:

assessment factor

PNEC freshwater (intermittent releases):

0.004 mg/L

Marine water

Hazard assessment conclusion:

PNEC aqua (marine water)

PNEC value:

0 mg/L

Assessment factor:

10 000

Extrapolation method:

assessment factor

STP

Hazard assessment conclusion:

PNEC STP

PNEC value:

3 mg/L

Assessment factor:

100

Extrapolation method:

assessment factor

Sediment (freshwater)

Hazard assessment conclusion:

PNEC sediment (freshwater)

PNEC value:

0.238 mg/kg sediment dw

Extrapolation method:

equilibrium partitioning method

Sediment (marine water)

Hazard assessment conclusion:

PNEC sediment (marine water)

PNEC value:

0.024 mg/kg sediment dw

Extrapolation method:

equilibrium partitioning method

Hazard for terrestrial organisms

Soil

Hazard assessment conclusion:

PNEC soil

PNEC value:

0.047 mg/kg soil dw

Extrapolation method:

equilibrium partitioning method

Conclusion on classification

Aquatic compartment

Official classification

In accordance with Regulation (EC) No 1272/2008 Annex VI Table 3.1 or Table 3.2: no data found for 3 -(chloromethyl)heptane (CAS 123 -04 -6)

LC/EC values for 3 -(chloromethyl) heptane are available from three trophic levels (fish, invertebrates and algae). Results for fish indicate that acute effects are not to be expected at the maximum water solubility (96-h LC0 > 3.1 mg/L; Ciba, 2000). The 72-h ErC50 for algae was determined to be > 1.14 mg/L, the 72 -h ErC10 = 0.424 mg/L (BASF SE, 2012). The most sensitive species is Daphnia magna (48-h EC50 = 0.375 mg/L, BASF SE, 2012). Chronic toxicity data are not available for the test substance.

Self-classification

Following DSD/DPD, the substance is to be classified as dangerous for the environment (symbol 'N', R50/53) since the acute toxicity to aquatic organisms (LC/EC50) is < 1 mg/L, the substance is not readily biodegradable and the determined log Pow is ≥ 3 (no experimentally determined BCF).

Following CLP (GHS-EU), the substance is to be classified as acutely hazardous to the aquatic environment since the lowest LC/EC50 is < 1 mg/L . The substance is to be classified as acutely hazardous to the aquatic environment (acute 1).

Chronic data are available only for algae (72 -h ErC10 = 0.424 mg/L), therefore classification is based on the available chronic and acute toxicity data. The data available for chronic classification are not adequate conclusive and not sufficient for classification. The chronic data indicate that the substance is to be classified as chronically hazardous to the aquatic environment (chronic 2). The lowest acute effect value is 0.375 mg/L (daphnid, 48-h EC50), the substance is not readily biodegradable and its log Pow is > 4. Therefore, the substance is to be classified as chronically hazardous to the environment (chronic 1).

M factor

Acute toxicity: Based on the lowest available acute effect value (LC/EC50 = 0.375 mg/L) an M-factor of 1 was selected.

Chronic toxicity: There is a NOEC available from an algal test (72 -h NOEC = 0.096 mg/L), therefore an M-factor of 1 was selected.

Atmospheric compartment

The test substance is not listed in Annex 1 of Regulation (EC) 2037/2000 on substances that deplete the ozone layer.

The test substance does not belong to the greenhouse gases listed in P Forster, PV Pamaswamy et al. Changes in Atmospheric Constituents and Radiative Forcing. In: Climate Change 2007: The Physical Basis. Contribution of Working Group 1 to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change.