Other chemical substances of interest

Topics

• Chemicals at a Glance

Environment and Climate Change Canada and Health Canada are managing substances under Chemicals Management Plan (CMP) initiatives such as the Challenge, the Rapid Screening Approach and the Petroleum Sector Stream Approach.

The Government of Canada is also taking action on substances outside of the CMP. These initiatives include conducting State of the Science reports, risk assessments and regulations on certain substances.

Information about these assessment or management activities may be obtained by clicking on the links below.

• Draft screening assessment
• Final assessments
• Final human health assessments
• Final ecological state of the science reports
• Priority Substances List assessments
• Regulations
• Science assessment

Draft screening assessment

• Hydrogen sulfide (H₂S), sodium sulfide (Na(SH)) and sodium sulfide (Na₂S) (updated draft assessment published February 3, 2024)

Final assessments

• Aluminum Salts (aluminum chloride, aluminum nitrate and aluminum sulphate) (published January 23, 2010)
• Aniline (published December 10, 2011)
• 1,1'-Biphenyl (Biphenyl) (published September 13, 2014)
• Chlorhexidine and its salts  (published June 29, 2019)
• Chlorinated Alkanes (published May 12, 2012 and August 30, 2008)
• Chlorinated Naphthalenes (published July 2, 2011)
• 4,6-Dinitro-o-cresol (DNOC) (published November 28, 2009)
• Ethene (published May 21, 2016)
• Ethene, 1,1-Dichloro-(1,1-dichloroethene) (published June 1, 2013)
• Ethane, 1,2-Dibromo-(1,2-dibromoethane) (published June 1, 2013)
• Ethylbenzene (published April 30, 2016)
• Ethylene glycol (published April 17, 2010)
• Hexabromocyclododecane (HBCD) (published November 12, 2011)
• Hexachloroethane (published April 30, 2016)
• Long-chain perfluorocarboxylic acids (PFCAs) that contain from 9 to 20 carbon atoms (C₉-C₂₀), their salts and their precursors (published August 25, 2012)
• 2,2'-Methylenebis[6-(1,1-dimethylethyl)-4-methylphenol] (MBMBP) (published November 28, 2009)
• Nineteen Substances on the Domestic Substances List Associated with Pesticidal Uses (published October 15, 2016)
• Non-pesticidal uses of six substances on the Domestic Substances List (published August 8, 2009)
• Organotins (published August 8, 2009)
• Per- and polyfluoroalkyl substances (PFAS) (published March 8, 2025)
• Perfluorooctanoic acid (PFOA), its salts and its precursors (published August 25, 2012)
• Phenol, 2-(2H-benzotriazol-2-yl)-4,6-bis(1,1-dimethylpropyl)-(BDTP) (published May 21, 2016)
• 2-Propanone (Acetone) (published September 13, 2014)
• 1-Propene (Propene) (published September 13, 2014)
• Quinoline (published November 19, 2011)
• Tetrabromobisphenol A (TBBPA) and two of its derivative substances (published November 30, 2013)
• Triclosan (published November 26, 2016)
• Used crankcase oils (UCOs) (published August 4, 2007)

Final human health assessments

• Decabromodiphenyl Ether (published December 2012)

Final ecological state of the science reports

• Decabromodiphenyl ether (decaBDE) (published August 28, 2010)
• Perfluorooctane Sulfonate (PFOS) (published July 1, 2006)

Priority Substances List assessments

• First Priority Substances List (PSL1) Assessments:
  • Benzene
  • Benzidine
  • Bis(2-ethylhexyl) phthalate
  • Bis(2-chloroethyl) ether
  • Chlorinated wastewater effluents
  • Chloromethyl methyl ether
  • Creosote-contaminated sites
  • 3,3'-Dichlorobenzidine
  • 1,2-Dichloroethane
  • Dichloromethane
  • Effluents from pulp mills using bleaching
  • Hexachlorobenzene
  • Hexavalent chromium compounds
  • Inorganic arsenic compounds
  • Inorganic cadmium compounds
  • Inorganic fluorides
  • Oxidic, sulphidic and soluble inorganic nickel compounds
  • Polychlorinated dibenzodioxins
  • Polychlorinated dibenzofurans
  • Polycyclic aromatic hydrocarbons
  • Refractory ceramic fibres
  • Short chain chlorinated paraffins
  • Tetrachloroethylene
  • Trichloroethylene
  • Aniline
  • Bis(2-chloroethyl) ether
  • Chlorobenzene
  • Dibutyl phthalate
  • 1,2-Dichlorobenzene
  • 1,4-Dichlorobenzene
  • 3,5-Dimethylaniline
  • Di-n-octyl phthalate
  • Methyl methacrylate
  • Methyl tertiary-butyl ether
  • Organotin compounds (non-pesticidal)
  • Pentachlorobenzene
  • Styrene
  • Tetrachlorobenzenes
  • 1,1,2,2-Tetrachloroethane
  • Toluene
  • Trichlorobenzenes
  • Waste crankcase oils
  • Xylenes
• Second Priority Substances List (PSL2) assessments:
  • Acetaldehyde
  • Acrolein
  • Acrylonitrile
  • Aluminum chloride, aluminum nitrate, aluminum sulphate
  • Ammonia in the aquatic environment
  • 1,3-Butadiene
  • Butylbenzylphthalate
  • Carbon disulfide
  • Chloramines
  • Chloroform
  • N,N-Dimethylformamide
  • Ethylene glycol
  • Ethylene oxide
  • Formaldehyde
  • Hexachlorobutadiene
  • 2-Methoxyethanol
  • 2-ethoxyethanol
  • 2-butoxyethanol
  • 2-butoxyethanol ADDENDUM
  • N-Nitrosodimethylamine
  • Nonylphenol and its ethoxylates
  • Phenol
  • Releases from primary and secondary copper smelters and copper refineries
  • Releases from primary and secondary zinc smelters and zinc refineries
  • Respirable particulate matter less than or equal to 10 microns
  • Road salts
  • Textile mill effluents

Regulations

• Formaldehyde (regulations published December 18, 2024)
• Microbeads (regulations published June 14, 2017)
• Polybrominated Diphenyl Ethers (PBDEs) (regulations published October 5, 2016)

Science assessment

• Plastic pollution