No. 19

Isoproturon

CAS: 34123-59-6Category: PesticidesDirective: EU 2026/805 Annex VI

Compliance target22 Dec 2027

Environmental Quality Standards

Water EQS

Values in μg/L (micrograms per litre)

AA-EQS — Inland waters	0.3 μg/L
AA-EQS — Coastal & transitional	0.3 μg/L
MAC-EQS — Inland waters	1 μg/L
MAC-EQS — Coastal & transitional	1 μg/L

Pre-existing EQS — enforcement from 22 Dec 2027

Structure, physicochemical properties, and EU regulatory data

EQS values from Directive (EU) 2026/805 Annex VI.

Last verified: June 2026