The T-value in the score for hazard refers to chronic toxicity.
Carbamazepine is very persistent in the environment, but has a low potential for biooaccumulation. There is very good knowledge about the occurrence of water in Sweden. The reports that claim low-level effects have significant deficiencies. Low risk of environmental impact out of credible data.
Carbamazepine has been detected in treated wastewater, surface water and drinking water in Stockholm County in the last five years (2012–2016).
The risk classification low, according to Fass.se, is based on total sold amount (kg) of the substance in Sweden during the year 2015 and the toxicity of the substance.
Author: Health and Medical Care Administration, Region Stockholm