Hazard 5* P 3* B 0 T 2 Risk Insignificant
The T-value in the score for hazard refers to acute toxicity. Underlying data for B comes from Fass environmental information for Concerta (methylphenidate) downloaded 2018-09-04. Underlying data for P comes from Fass environmental information for Ritalin (methylphenidate) downloaded 2011-05-27. Underlying data for T comes from Fass environmental information for Concerta downloaded 2011-05-27. The risk is calculated on the basis of data for the PNEC value from Concerta's environmental information downloaded 2011-05-27 and the reported PEC value from Fass environmental information for Concerta downloaded 2018-09-04 when in Fass environmental information for Concerta downloaded 2018-09-04 it is stated that the risk of environmental effects of methylphenidate can not be excluded when no ecotoxicological data are available.
Persistence according to Fass environmental information for Ritalin downloaded 2011-05-27: "Degradation: 4% (aerobic, OECD 301E) not readily biodegradable."
Bioaccumulation according to Fass environmental information for Concerta downloaded 2018-09-04: log Dow = 0.2.
Acute toxicity according to Fass environmental information for Concerta downloaded 2011-05-27: Data for 3 trophic levels, lowest for green algae (Selenastrum capricornutum) 6 mg/L.
PEC/PNEC is based on sales data in Sweden in year 2016 according to Fass environmental information for Concerta downloaded 2018-09-04. PEC = 0.15029664 microg/L. PNEC (Fass environmental information for Concerta downloaded 2011-05-27) = 6 mg/L/1000 (AF) = 6 microg/L. PEC/PNEC = 0,025 which gives the risk insignificant.
Author: Health and Medical Care Administration, Region Stockholm