Guidelines for Canadian drinking water quality boron: International considerations

Guidelines for Canadian drinking water quality boron: International considerations The World Health Organization (WHO), U.S. EPA, Australia's National Health and Medical Research Council and the European Commission have developed guidelines or advisory values for boron in drinking water (Table 6). WHO (2011), Australia (NHMRC and NRMCC, 2011) and the European Commission (2020) have set guidelines for boron in drinking water of 2.4, 4 and 1.5 to 2.4 mg/L, respectively. The U.S. EPA does not have a maximum contaminant level (MCL) for boron in drinking water but has established a non-enforceable lifetime health advisory of 5 mg/L (U.S. EPA, 2008). Health advisories serve as informal technical guidance for unregulated drinking water contaminants in the United States. All organizations' values used decreased rat body weights as the critical effect. The differences in the values are attributable to differences in uncertainty factors, allocation factors, body weights and use of BMD modelling versus the NOAEL approach. 2024-06-28 Health Canada open-ouvert@tbs-sct.gc.ca Health and SafetyGuidelinesCanadiandrinking water qualityboronInternational considerationsThe World Health Organization(WHO)U.SEPAAustralia'sNational Health andMedical Research Councilthe European Commissionhave developed guidelinesor advisory valuesfor boronin drinking water Guidelines for Canadian drinking water quality boron: International considerationsHTML https://www.canada.ca/en/health-canada/services/publications/healthy-living/guidelines-canadian-drinking-water-quality-guideline-technical-document-boron/international-considerations.html Guidelines for Canadian drinking water quality boron: International considerationsHTML https://www.canada.ca/fr/sante-canada/services/publications/vie-saine/recommandations-pour-qualite-eau-potable-canada-document-technique-bore/considerations-internationales.html

The World Health Organization (WHO), U.S. EPA, Australia's National Health and Medical Research Council and the European Commission have developed guidelines or advisory values for boron in drinking water (Table 6). WHO (2011), Australia (NHMRC and NRMCC, 2011) and the European Commission (2020) have set guidelines for boron in drinking water of 2.4, 4 and 1.5 to 2.4 mg/L, respectively. The U.S. EPA does not have a maximum contaminant level (MCL) for boron in drinking water but has established a non-enforceable lifetime health advisory of 5 mg/L (U.S. EPA, 2008). Health advisories serve as informal technical guidance for unregulated drinking water contaminants in the United States. All organizations' values used decreased rat body weights as the critical effect. The differences in the values are attributable to differences in uncertainty factors, allocation factors, body weights and use of BMD modelling versus the NOAEL approach.

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