The T-value in the score for hazard refers to acute toxicity. Underlying data for P, B, T and risk comes from Fass.se.
Fass environmental information for Brevoxyl (benzoyl peroxide) (downloaded 2013-11-25).
Persistence: "Ready biodegradation = 84% in 21d (OECD 301C, Chem Inspect Test Inst 1992)."
Bioaccumulation: Log Pow = 3.43.
Acute toxicity: There are data for 3 trophic levels, lowest crustacean (Daphnia magna) 70 microg/L.
PPEC/PNEC is based on sales data in Sweden in year 2010. PEC/PNEC = 1,56 which gives the risk moderate.
No new environmental information for benzoyl peroxide is published on Fass.se (2018-07-02). It is voluntary for manufacturers to provide information on the environmental impact on fass.se.
Author: The Pharmaceutical unit of Region Stockholm