Toxic substances list: inorganic chloramines

Inorganic chloramines consist of three chemicals that are formed when chlorine and ammonia are combined in water: monochloramine (NH2Cl), dichloramine (NHCl2) and trichloramine (NCl3). Inorganic chloramines, free chlorine and organic chloramines are chemically related and are easily converted into each other; thus, they are not found in isolation. Chloramines and free chlorine are released to the Canadian environment by municipal and industrial sources. They are used to disinfect drinking water and wastewaters and to control biological fouling in cooling water systems and at the intakes and outlets of utilities and industries (e.g., for zebra mussel control).

CAS (Chemical Abstract Service) registry number: 10599-90-3, 3400-09-7 and 10025-85-1.

Risk assessment

• Priority Substances List Assessment Report
• Order Adding Toxic Substances to Schedule 1 to the Canadian Environmental Protection Act, 1999
• CEPA 1999 Schedule 1 - List of Toxic Substances - This substance has been added to the List of Toxic Substances. It is entering or may enter the environment in a quantity or concentration or under conditions that:
  a) have or may have an immediate or long-term harmful effect on the environment or its biological diversity.
• Full life cycle management of the substance (Track 2) under the Toxic Substances Management Policy

Risk management strategy

Click on the following link to view strategies and actions recommended to manage risks associated with the substance:

• Proposed Risk Management Strategy addressing Ammonia, Inorganic Chloramines and Chlorinated Wastewater Effluents under CEPA 1999, 2002

Risk management tool(s)

Tool(s) developed to manage risks associated with the substance:

• Pollution Prevention Planning for Inorganic Chloramines and Chlorinated Wastewater Effluents
• Pollution Prevention Planning Notices - Inorganic Chloramines and Chlorinated Wastewater Effluents

Consultation

Consultation (past and present) on the substance:

• Proposed Notice Requiring the Preparation and Implementation of Pollution Prevention Plans for Ammonia Dissolved in Water, Inorganic Chloramines and Chlorinated Wastewater Effluents, 2003-06-07 (archived consultation document)

Other information

• Response to Stakeholders' Comments on the Proposed Notice Requiring the Preparation and Implementation of Pollution Prevention Plans for Ammonia Dissolved in Water, Inorganic Chloramines and Chlorinated Wastewater Effluents, under CEPA 1999
• Municipal Wastewater Effluents - Information Centre

Contact 

Substances Management Information Line
Chemical Management Plan
Gatineau, QC K1A 0H3

E-mail: eccc.substances.eccc@canada.ca

Telephone: 1-800-567-1999 (in Canada) or 819-938-3232 

Fax: 819-938-5212

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