Wood preservation facilities, inorganic boron: chapter I, table 3

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Element	Limit value (mg/L)	Basis (objectives)	Agency
Boron	Not determined	Protection of aquatic life	International Joint Commission ^Footnotea
	Interim maximum acceptable concentrations: 5 mg/L	Protection of human health: Guidelines for Canadian Drinking Water Quality	Health Canada ^Footnoteb^Footnotec
	Maximum: 2.4 mg/L	Protection of human health: Drinking water quality guidelines	World Health Organization (WHO) ^Footnoted
	Freshwater Short term 29 mg/L Long term 1.5 mg/L Marine No recommended guideline	Protection of aquatic life	Canadian Council of Ministers of the Environment (CCME) ^Footnotee
	Irrigation Variable upon crops Livestock 5 mg/L	Protection of agriculture	CCME^Footnotee

Footnotes

Footnote a

Recommendations of the International Joint Commission (IJC) to the governments of Canada and the United States, Great Lakes Water Quality Agreement, 1978 (Review 2007).

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Footnote b

Health Canada, Guidelines for Canadian Drinking Water Quality, 2010.

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Footnote c

“Maximum acceptable” was defined by Health Canada as: “Drinking water that contains substances in concentrations greater than these limits is either capable of producing deleterious health effects or is aesthetically objectionable.” “Objective” is defined by Health and Welfare Canada as: “This level is interpreted as the ultimate quality goal for both health and aesthetic purposes.”

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Footnote d

Guidelines for Drinking-water Quality, Fourth Edition, © World Health Organization 2011. ISBN 978 92 4 154815 1. Table 8.8, Guideline values for naturally occurring chemicals that are of health significance in drinking water, p. 178.

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Footnote e

Canadian Council of Ministers of the Environment (CCME) Canadian Environmental Quality Guidelines, Water Quality Guidelines for the Protection of Aquatic Life.

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Wood preservation facilities, inorganic boron: chapter I, table 3

Table 3. Regulatory Limits for Boron in Natural Water Bodies

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