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*Altered hydrology, oxygen, nitrogen and carbon level dynamics in lakes and streams.  
*Altered hydrology, oxygen, nitrogen and carbon level dynamics in lakes and streams.  


==CCME Guidelines on Salt's Impact to Environment==
===CCME Guidelines on Salt's Impact to Environment===
The [https://sustainabletechnologies.ca/app/uploads/2014/05/CWQG_chlorides.pdf Chloride - Canadian Water Quality Guidelines for the Protection of Aquatic Life]<ref>Canadian Council of Ministers of the Environment. 2011. Canadian water quality guidelines for the protection of aquatic life: Chloride. In: Canadian environmental quality guidelines, 1999, Canadian Council of Ministers of the Environment, Winnipeg. https://sustainabletechnologies.ca/app/uploads/2014/05/CWQG_chlorides.pdf</ref> document from the Canadian Council of Ministers of the Environment (CCME) is another valuable paper that discusses the direct toxic effects of chloride, based on studies using NaCl and CaCl<sup>2</sup> salts. The guideline can be used as a screening and management tool to ensure that chloride does not lead to the degradation of the aquatic environment. Further guidance on the application of these guidelines is provided in the scientific criteria document (CCME 2011), which can be found here - [https://www.ccme.ca/fr/res/2011-chloride-ceqg-scd-1460-en.pdf Scientific Criteria Document - Cl Ion]. The scientific criteria document goes into detail about the following related to chloride levels in the environment:
The [https://sustainabletechnologies.ca/app/uploads/2014/05/CWQG_chlorides.pdf Chloride - Canadian Water Quality Guidelines for the Protection of Aquatic Life]<ref>Canadian Council of Ministers of the Environment. 2011. Canadian water quality guidelines for the protection of aquatic life: Chloride. In: Canadian environmental quality guidelines, 1999, Canadian Council of Ministers of the Environment, Winnipeg. https://sustainabletechnologies.ca/app/uploads/2014/05/CWQG_chlorides.pdf</ref> document from the Canadian Council of Ministers of the Environment (CCME) is another valuable paper that discusses the direct toxic effects of chloride, based on studies using NaCl and CaCl<sup>2</sup> salts. The guideline can be used as a screening and management tool to ensure that chloride does not lead to the degradation of the aquatic environment. Further guidance on the application of these guidelines is provided in the scientific criteria document (CCME 2011), which can be found here - [https://www.ccme.ca/fr/res/2011-chloride-ceqg-scd-1460-en.pdf Scientific Criteria Document - Cl Ion]. The scientific criteria document goes into detail about the following related to chloride levels in the environment:
*Aquatic sources and fate
*Aquatic sources and fate
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**Mutations / Bioaccumulation / Dermal Effects / Taste and odour of water and fish
**Mutations / Bioaccumulation / Dermal Effects / Taste and odour of water and fish


===Recent Local Findings===
Most recently, staff from the TRCA released an article in the January/February, 2022 edition of Water Canada magazine highlighting the effects of rock salt's over use and application across Southern Ontario's watersheds and is impact on freshwater environments and species.
Most recently, staff from the TRCA released an article in the January/February, 2022 edition of Water Canada magazine highlighting the effects of rock salt's over use and application across Southern Ontario's watersheds and is impact on freshwater environments and species.


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