Underlying data for P, B, T and risk are from Fass.
Fass environmental information for Daivobet (betamethasone, calcipotriol) (downloaded 2018-11-07).
Persistence: "Calcipotriol is not readily biodegradable. It has been tested according to the test guideline OECD 301F and a biodegradation of -2 ± 2% was found after 28 days."
Bioaccumulation: Log Pow, calcipotriol = 4.9.
Toxicity: No data.
"Because of the lack of data it is not possible to calculate a valid PNEC and a risk of environmental impact cannot be excluded."
Author: The Pharmaceutical unit of Region Stockholm