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No. 18Priority Hazardous SubstanceuPBT

Hexachlorocyclohexane

CAS: 608-73-1Category: 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 waters0.02 μg/L
AA-EQS — Coastal & transitional0.002 μg/L
MAC-EQS — Inland waters0.04 μg/L
MAC-EQS — Coastal & transitional0.02 μg/L

Monitoring guidance

  • ●uPBT — reduced monitoring frequency permitted (guideline: ≥ every 3 years)