Image of a barrel with chemicals leaking out

Chemical, Biological, Radiological, Nuclear, Explosive Incident and Shelter-in-Place



Hazardous chemicals are present in industrial areas, our homes, cars, places of work and pipelines. When not properly contained, these materials can be harmful to people and the environment. Accidents are more likely to occur in areas where chemicals are stored and transported.

 Preventing home accidents:

  • Store only small amounts of chemicals
  • Use community recycling centres to dispose of unnecessary chemicals (including paint)
  • Keep products containing hazardous materials in their original containers
  • Never store hazardous products in food containers
  • Follow manufacturer's instructions for the proper use of household chemicals
  • Never mix household hazardous chemicals or waste with other products
  • Keep all chemicals out of the reach of children and pets

 If a household chemical spill occurs:

  • Ventilate the area, open all windows and doors
  • Clean up any chemical spill immediately - use rags to clean up the spill, wear gloves and eye protection
  • Dispose the rags by wrapping them in a newspaper, place them in a sealed plastic bag and take to the local collection facility
  • Dispose of hazardous materials by following directions of the associated chemical
  • Take household hazardous waste to a local collection program

 Response to a chemical release in the city:

  • Stay away from the area and seek shelter away from odour or gas clouds
  • Obey directions of emergency responders - do not stay to watch
  • Be prepared to shelter-in-place
  • An evacuation order may be issued - have your emergency kit ready and be prepared to leave your home
  • Keep track of any physical irregularities and communicate them to medical personnel
  • If outside, hold a cloth over your mouth and nose


Image of a person standing in front of a question mark Did you know there are 5 nuclear facilities located in and around Ontario?  When traveling or staying at a cottage or hotel near a nuclear facility be informed by checking out these tips or sign up for alerts in these locations.

Shelter-in-Place is the practice of going or remaining indoors to be safe during an airborne hazardous material release into the air. Unless the hazardous material is flammable, stay indoors.


The basics:

  • Go indoors immediately and stay there
  • Close all windows and doors
  • Turn off furnace, air conditioners and exhaust systems
  • For information, monitor radio, TV or social media


  • Cover window openings with plastic, held by duct tape - you may want to pre-cut pieces of plastic for this purpose
  • Reduce or avoid smoking
  • Close all dampers
  • Dial 9-1-1 only in an emergency


  • Don't use fireplace
  • Don't operate clothes dryer
  • Don't leave the building until instructed


Image of a person standing in front of a question mark

Stocking your Emergency Kit with a set of cards and a few board games will help the time to pass if you need to Shelter-in-place?  Also choose a room in your house that has access to a phone, television or internet access to help you stay informed during the emergency.


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