Underlying data for B and risk are from Fass.
Fass environmental information for Procren depot (leuprorelin) (downloaded 2019-03-11).
Persistence: No data.
Bioaccumulation: "Log Dow = -1.7 at pH 7. The Kow of leuprolide acetate was reported to be 0.02 at pH of 7. [---] Since log Dow < 4 at pH 7, the substance has low potential for bioaccumulation."
Toxicity: No data.
"Risk of environmental impact of leuprorelin acetate cannot be excluded, since no ecotoxicity data are available."
Author: Health and Medical Care Administration, Region Stockholm