Registration Dossier

Diss Factsheets

Administrative data

Hazard for aquatic organisms

Hazard for air

Hazard for terrestrial organisms

Hazard for predators

Additional information

Conclusion on classification

Fish were found to be the most sensitive aquatic species. The acute aquatic toxicity (based on the lowest of the available toxicity values) is LC50 (14d) = 0.086 mg/L, the substance is not readily biodegradable, though low potential for bioaccumulation. 1,4 -dichlorobut-2 -ene is classified according to Directive 67/548/EEC as R50/53 and according to Regulation (EC) No 1272/2008 as Acute and Chronic Category 1. The M-factor of 10 is assigned according to Table 4.1.3 Annex I Regulation (EC) No 1272/2008.