Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
0.17 mg/L
Assessment factor:
1 000
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
1.7 mg/L

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0.017 mg/L

STP

Hazard assessment conclusion:
PNEC STP
PNEC value:
180 mg/L
Assessment factor:
1
Extrapolation method:
assessment factor

Sediment (freshwater)

Hazard assessment conclusion:
PNEC sediment (freshwater)
PNEC value:
4.33 mg/kg sediment dw
Extrapolation method:
equilibrium partitioning method

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.433 mg/kg sediment dw
Extrapolation method:
equilibrium partitioning method

Hazard for air

Air

Hazard assessment conclusion:
no hazard identified

Hazard for terrestrial organisms

Soil

Hazard assessment conclusion:
PNEC soil
PNEC value:
0.768 mg/kg soil dw
Extrapolation method:
equilibrium partitioning method

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential for bioaccumulation

Additional information

Conclusion on classification

Data relevant for classification:

 

Degradation

 

Biodegradation: 0% of BOD (OECD 301F)

 

Bioaccumulation

log Kow: 0.09 (OECD 107)

 

Aquatic acute toxicity

For fish:                             96 h, LC50(Leuciscus idus): 184 mg/L

For aquatic invertebrates:    48 h, EC50(Daphnia magna): 170 mg/L

For algae/aquatic plants:     72 h, ErC50(Pseudokirchneriella subcapitata): 390 mg/L

 

Aquatic chronic toxicity

For fish:                             not available

For aquatic invertebrates:    not available

For algae/aquatic plant:       not available

 

Conclusion:

 

CLP:

Chronic data are not available for 2-(dimethylamino)-2-methylpropan-1-ol (DMAMP). However, the acute aquatic toxicity L(E)C50 values are > 1 mg/L for fish, invertebrates and algae, and the substance has low bioaccumulation potential. Although DMAMP is not rapidly biodegradable, the chemical safety assessment indicates no need to further investigate aquatic toxicity. DMAMP does not need to be classified and labelled as environmental hazard according to the 2ndATP of the Regulation (EC) No.1272/2008 (CLP).

 

DSD:

The acute aquatic toxicity L(E)C50 values are > 100 mg/L to fish, invertebrates and algae. DMAMP does not need to be classified and labelled as environmental hazard according to Directive 67/548/EEC.