Thank you, Mr. Chair.
Thank you to the witnesses for coming here today to provide so much knowledge in such a short time.
I'm new to this committee, and some things really stood out for me. The government identified 138 toxic substances, such as mercury, lead and PCBs. I'm curious about how it is broken down. What is the source? Is it municipal, industrial, agricultural?
We understand it's there. What is the source, and is that documented over time, Commissioner?