Asbestos is a mineral that is hazardous to human health when it's disturbed and allowed to float freely in the air. It was used in the past for insulation and fireproofing, among other things.
If you own a home in Thompson, it's possible there's still asbestos insulation in the home. This usually isn't a problem as long as it remains undisturbed and in good condition.
However it can present a hazard when undertaking construction or renovation of your home, and it does not take a lot of asbestos in the air to create a hazard, and simple acts like cutting or drilling asbestos-containing material can create a serious health hazard.
Suspected asbestos should always be assessed by a qualified inspector prior to construction. It should also only be handled or removed by a qualified and experienced contractor who knows how to contain the environment and control the risk.
There's more information available through the fact sheets below:
Asbestos Assessment and Abatement Best Practices - Environmental Abatement Council of Ontario
Frequently Asked Questions about Asbestos - Manitoba Workplace Health and Safety
Hazard Alert: Asbestos - Employment and Social Development Canada