Iomeprol
Summary
Persistence. Iomeprol is potentially persistent.
Bioaccumulation. Iomeprol has low potential for bioaccumulation.
Toxicity. Iomeprol has low acute toxicity. See the comment under the heading "Detailed Information".
Risk. The use of iomeprol (sales data Sweden 2020) has been considered to result in insignificant environmental risk.
This summary information comes from fass.se.
Detailed information
Fass environmental information
Fass environmental information for Iomeron (iomeprol) from Bracco (retrieved on 2025-08-27).
Hazard
Persistence: Abiotic and biotic degradation: Iomeprol did not inhibit the oxygen consumption of activated sludge at concentrations up to 100 mg/L (OECD 209). Degradation was observed over a 28-day period, and primary biodegradation did not exceed 15%. Based on the OECD 301 test and the absence of data on mineralisation, iomeprol is considered potentially persistent.
Bioaccumulation: Log10 Kow = -2.68.
Acute toxicity: There are data for 3 trophic levels, lowest LC/EC50 = > 1000000 microg/L. Comment: Values reported as greater than are not according to the guidelines. The actual value may be lower.
Risk
PEC/PNEC is based on sales data in Sweden in year 2020.
PEC = 0.743 microg/L.
PNEC = Lowest LC/EC50, 1000000 microg/L/1000 (Assessment Factor (AF) for acute studies) = 1000 microg/L.
PEC/PNEC = 0.000743 which gives the risk insignificant.
References
Author: Health and Medical Care Administration, Region Stockholm
