ChemTRAC

June 30, 2026 is the deadline for facilities to submit a report for 2025 data. We recommend facilities prepare and submit their report early in the year so we can assist them better.

Submit a ChemTRAC report

ChemTRAC is a program that tracks 25 chemicals in Toronto’s air as required by the Environmental Disclosure and Reporting Bylaw. Some businesses are required to report each year to Toronto Public Health (TPH) if they use or release these chemicals. TPH reviews the reports and shares the information with the public. Find out if your business is required to submit a report to TPH.

ChemTRAC Disclosure

See reported chemical data in Toronto by facility, industry, substance, and more.

About ChemTRAC

Learn about the chemicals used or released by businesses, health effects and more.

ChemTRAC Reports

See new and archived annual and other ChemTRAC-related reports going back to 2005.

Tools & Information for Businesses

Find tools to help with reporting and learn about ways you can green your business.