Allyl alcohol

Endpoint summary

Additional information

Toxicity to terrestrial plants: Lactuca sativa was exposed to allyl alcohol for 3 days; the effective concentration of allyl alcohol to inhibit germination by 50% was determined. The study was performed with seedlings immersed in an aqueous solution/mixture. The author reports an EC50 value of 0.056 mM (which has been calculated as equivalent to 3.25 mg/l). Although the converted value represents an aqueous phase concentration, the QSAR Koc value of 4.06 and a log Kow of 0.17 both suggest that AA will mainly partition to the aqueous phase in soil: in view of this and as AA will mainly be taken up by plants via the aqueous phase the converted EC50 value of 3.25 mg/l has been taken as representative of a soil concentration of 3.25 mg/kg dw for the purposes of risk assessment. The EC50 value equivalent to 3.25 mg/kg has been selected as the key acute terrestrial toxicity value for calculation of soil predicted no-effect concentration to be used in the environmental risk characterisation.

Toxicity to soil microorganisms:

Allyl alcohol was added to sandy loam soil containing the plant pathogen Sclerotinia sclerotiorum and observed for inhibition of carpogenic germination inhibition at nominal concentrations of 50, 100, 150, 200, 300 and 400 ppm for a period of 3 weeks. At 50 mg/l 100% germination was observed and at 100 mg/l 13% germination was observed. The EC50 (for inhibition of carpogenic germination) was determined to be between 50 -100 ppm (mg/l).

Toxicity to terrestrial arthropods and toxicity to birds: Test not required as no significant soil or sediment PECs.

Toxicity to soil macroorganisms except arthropods: In accordance with column two of REACH annex IX, the test does not need to be conducted if direct and indirect exposure of the soil compartment is unlikely. This will be determined in the chemical safety assessment.