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Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

Stability

No data is available regarding the stability of 2-methylquinoline.

2-methylquinoline is reasonable stable in water based on its structure. In fact, 2 -methylquinoline does not contain hydrolysable groups.

Biodegradation in water

No ready biodegradability is predicted for 2-methylquinoline by BIOWIN v.4.10.

This predicted value is support by two experimental studies reported in Summary report of Toxicological Literature for Methylquinolines, NTP,2002:

-In the first study (Dembek et all, FEBS Letters 246(1-2):113-116,1989. Abstract from BIOTECHNO 1989:19087782, 1989) the biotransformation performed by Alcaigenes and Arthrobacter species was analysed: 2-methylquinoline was transformed by Alcaigenes and Arthrobacter species to 3,4-dihydroxy-2-oxo-1,2-dihydroquinoline, followed by decomposition to quinisatin. Quinisatin then decomposed to anthranilic acid (CAS 118-92-3) and isatin (CAS 91-56-5). Based on BIOWIN V.4.10 anthranilic acid is ready-biodegradable but isatin is not ready-biodegradable.

-In the second study (Johansen et all, Appl. Microbiol. Biotechnol. 47(3):292-300, 1997), 2-methylquinoline was resistant to degradation by Desulfobacterium indolicum due to the substitution in position 2 of pyridine ring.

 

Biodegradation in soil

No data available

 

Bioaccumulation: aquatic

No experimental data is available regarding bioaccumulation of 2-methylquinoline but low potential of bioconcentration is predicted by BCFBAF v.3.01 (log BCF = 1.376; BCF = 23.76 l/kg wet-wt; 23.76 < 500 that is the alert value for BCF).

Bioaccumulation: terrestrial

No data available