Guidelines for Canadian Drinking Water Quality: Guideline Technical Document – Diquat

Guidelines for Canadian Drinking Water Quality: Guideline Technical Document – Diquat Diquat (C12H12N2) is a bipyridyl herbicide generally marketed as a dibromide salt or a dichloride monohydrate. It is used as a pre-harvest desiccant for various seed crops, for potato haulm destruction and for the control of aquatic weeds. Less than 100 000 kg are used annually in Canada; 96% of this amount is applied as a harvest aid. The maximum acceptable concentration (MAC) for diquat (measured as the cation) in drinking water is 0.07 mg/L (70 µg/L). 2021-12-01 Health Canada open-ouvert@tbs-sct.gc.ca Health and SafetyCanadian drinking-water qualitytechnical documentDiquatwater containing Diquatmaximum acceptable concentrationhealth risks Guidelines for Canadian Drinking Water Quality: Guideline Technical Document – DiquatHTML https://www.canada.ca/en/health-canada/services/publications/healthy-living/guidelines-canadian-drinking-water-quality-guideline-technical-document-diquat.html Guidelines for Canadian Drinking Water Quality: Guideline Technical Document – DiquatHTML https://www.canada.ca/fr/sante-canada/services/publications/vie-saine/recommandations-pour-qualite-eau-potable-canada-document-technique-diquat.html

Diquat (C12H12N2) is a bipyridyl herbicide generally marketed as a dibromide salt or a dichloride monohydrate. It is used as a pre-harvest desiccant for various seed crops, for potato haulm destruction and for the control of aquatic weeds. Less than 100 000 kg are used annually in Canada; 96% of this amount is applied as a harvest aid. The maximum acceptable concentration (MAC) for diquat (measured as the cation) in drinking water is 0.07 mg/L (70 µg/L).

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