Registration Dossier

Ecotoxicological information

Endpoint summary

Administrative data

Description of key information

Short-term toxicity to fish:


With high probability not harmful to fish.


LC50 (96 h): > 100 mg/L (Oryzias latipes, semi-static conditions, analytically verified concentrations)


 


Long-term toxicity to fish:


No experimental data available.


NOEC (ACR method): > 1 mg/L


 


Short-term toxicity to aquatic invertebrates:


Morpholine is acutely harmful to aquatic invertebrates.


EC50 (48 h): 45 mg/L (Daphnia magna, OECD 202, static)


 


Long-term toxicity to aquatic invertebrates:


EC10 (21 d): 8.134 mg/L (Daphnia magna, OECD 211, semi-static)


 


Growth inihibition to aquatic algae:


Morpholine is acutely toxic to aquatic algae.


ErC50 (72 h): 65 mg/L (Pseudokirchneriella subcapitata, OECD 201, static, analytically verified concentrations)


ErC10 (72 h): 31 mg/L (Pseudokirchneriella subcapitata, OECD 201, static, analytically verified concentrations)


 


Toxicity to microorganisms:


The inhibition of the degradation activity of activated sludge is not anticipated when introduced to biological treatment plants in appropriate low concentrations.


EC20 (30 min): > 1000 mg/L (OECD 209; one test with domestic activated sludge and two tests with industrial activated sludge)


EC3 (16 h): 310 mg/L (Pseudomonas putida, growth inhibition test)

Additional information