The ChemTRAC program requires local facilities to annually track and report on the use and release of priority substances as per the Environmental Reporting and Disclosure Bylaw. This Toronto Public Health program collects data each year from local businesses and institutions on 25 priority substances that are commonly used or released, and exist in our environment at levels of concern for health. Evidence links these substances to short-term health effects like respiratory problems, and longer term impacts such as cancer.

ChemTRAC also supports local facilities with green business practice strategies and provides the public with information on the key chemicals in their community.