Chlorotoluron

Type: Herbicide 

Health Hazards: Classified as probably toxic to reproduction and carcinogenic (“R2” and “C2”). Studies found kidney adenomas and adenocarcinomas, and evidence for fetotoxicity. It was classified as a Candidate for Substitution due to its endocrine-disrupting properties.

Environmental Hazards: Pestistant pollutant and indicated soil polluting and biodiversity risks, but proper assessment is lacking. Classified as very toxic to aquatic life with acute and long-lasting effects.  

Exposure: Authorised in 19 member states (AT, BE, BG, CZ, DE, EE, EL, ES, FR, HR, HU, IE, IT, LV, PL, PT, RO, SI, SK). 

Residues present in food: 45 Maximum Residue Limits (MRLs) above the Level of detection (LOD) of 0.01 mg/kg are established, ranging from 0.012mg/kg to 0.1 mg/kg per product.

Regulatory state of play: Following six “exceptional” prolongations (each for one year),  approved until the end of 2022. The last comprehensive review report was in 2006. 

Use: Mainly used on cereal crops e.g. wheat & barley; used for early control of broad-leaved weeds and grasses; used as a foliar spray or applied to the soil prior to planting. 

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