Toxic substances list: formaldehyde

In Canada, formaldehyde is used primarily in the production of resins and fertilizers and for a variety of minor uses. Formaldehyde enters the Canadian environment from natural sources (including forest fires) and from direct human sources, such as automotive and other fuel combustion and industrial on-site uses. Secondary formation also occurs, by the oxidation of natural and anthropogenic organic compounds present in air. Although there are no quantitative estimates, releases from natural and secondary sources in Canada are likely greater than direct human releases. However, the highest concentrations measured in the environment occur near anthropogenic sources; these are of prime concern for the exposure of humans and other biota.

CAS (Chemical Abstract Service) registry number: 50-00-0

Risk assessment


This substance is entering the environment from the following sources:

Risk Management Tools

Tools developed to manage risks associated with the substance:

Other information


Substances Management Information Line
Chemicals Management Plan
Environment and Climate Change Canada
Gatineau, QC K1A 0H3

Telephone: 1-800-567-1999 (in Canada) or 819-938-3232
Fax: 819-938-3231


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