It is something that local emergency personnel have to deal with on a daily basis, and that's the lasting impact of a severe event.
A University of Alberta study shows one in six firefighters who battled the 2016 Fort McMurray wildfire show signs of mental health issues.
The report shows one in five of the 355 firefighters who worked on the wildfire have reported persistent respiratory issues including coughing, breathlessness, wheezing and chest tightness.
RCMP Inspector Mark Hancock says they did learn some lessons and are looking at ways to make it easier for emergency personnel to do their job.
Hancock adds they are also taking steps to ensure there is enough rations, food and water for emergency workers who are dealing with disaster.
He says they are also receiving a new radio system to improve communication.