Emergency preparedness sirens: Prevention tests

On Thursday, November 29, from 2 to 3 p.m., the sirens of nine Montréal factories will sound in order to raise residents’ awareness of the risks and behaviours to adopt in the event of a toxic leak.


As a proactive city, our residents’ safety is important to us. This is why we are closely collaborating with Montréal factories to prevent major industrial risks.  

For the past several years, the Centre de la sécurité civile has coordinated an emergency preparedness test. This year, the simulation will take place on Thursday, November 29. Its objective is to notify people outside industrial facilities and who live nearby to seek shelter in the event of a toxic leak.

It’s also an opportunity to ensure that equipment is working correctly, and to ensure the preparedness of emergency responders. 

Listen to keep away from danger

During the drill, which will take place between 2 and 3 p.m, the sirens of nine factories will be heard successively in areas of 12 Montréal boroughs and four neighbouring municipalities. 

Residents do not need to do anything during the three-minute test. 

Learn more about siren tests

Quick — seek shelter!  

If there should be a toxic leak caused by a major accident, seeking shelter is the best way to protect yourself. 

Since it’s not an innate reflex, the city wants all of its residents to know what they should do in the event of a toxic leak, and a siren simulation is a great chance to get prepared. Here are some tips if you should find yourself in this type of emergency: 

  • Quickly seek shelter in the nearest building to avoid breathing in toxic chemicals
  • Close and seal doors and windows. Stay away from doors and windows and turn off ventilation to keep the toxic product from entering the building
  • Listen to the radio to hear instructions from authorities
  • Leave kids at school to keep from exposing yourself or them to toxic chemicals
  • Do not make phone calls so that the line is free for emergency workers
  • Call 9-1-1 only if there is an emergenc

Learn more about preventing the risks of a major industrial accident