Q: Are there any restrictions on what types of pesticides may be used on premises (indoors) of an office, commercial, or public buildings? There are currently laws restricting the use outside of buildings, but indoor exposure is a more serious concern as dissipation/breakdown occurs much more slowly in indoor environments. Are there any legal requirements that oblige employees, visitors or occupants to be properly notified (via signs, etc.) whenever any pesticides would be applied, just as would be the case for outdoor application.

A: The control and allowance of the use of pesticides is actually shared by the federal and provincial governments, along with municipal governments. There are restrictions on the use of pesticides within certain types of buildings, such as daycares, public libraries, and schools. However, you probably should check with your particular city borough or the City of Montreal itself for clarification.