Environmental information is missing on fass.se for estriol (2021-04-21). It is voluntary for manufacturers to provide information about environmental impact on fass.se.
Report Pharmaceutial residues in the Stockholm aquatic environment. Estriol has been measured in treated wastewater at concentrations up to 20 ng/L in Stockholm, Sweden. The reduction rate in the wastewater treatment plants Henriksdal and Bromma is reported to be 98 %.
Author: Health and Medical Care Administration, Region Stockholm