Skip to main content

Chemical accident

A chlorine accident in a popular spa poisoned 33 people

Read more

Warning signs

  • You can smell the chemicals or feel unwell, which may be related to chemicals.
  • You see a dangerous vehicle involved in an accident.
  • You hear the sirens at a dangerous enterprise activate.
  • You see people lying on the ground.

How to prepare for a chemical accident

  • Determine whether your home and the places where your family members stay on a daily basis (workplace, school, etc.) fall within the danger area of a dangerous enterprise.
  • Examine the safety advice and recommendations published by the dangerous enterprise.
  • Find out the meaning of sirens used by the dangerous enterprise.
  • Make preparations at home to shelter indoors in the event of a chemical accident. (See Chapter “Sheltering Indoors”).
  • Examine the danger labels of dangerous chemicals and cargo to be able to recognise the chemical accidents.

Worth knowing

How to act in case of a chemical accident


  • Avoid any contact with any loose chemicals.
  • Protect your respiratory tract, covering your mouth and nose with a wet cloth.
  • When driving a car, close the windows and switch off the ventilation. Switch the air conditioning to internal air recirculation mode.
  • If the site of the accident is known or clearly visible, move away from it perpendicular to the direction of the wind.
  • Shelter quickly in the nearest room inside, while avoiding the building from which the chemicals are leaking. (See Chapter “Sheltering Indoors”).


  • Stay indoors, but do not remain in the building from which chemicals are leaking.
  • It is advisable to shelter on the upper floors. Several dangerous chemicals may accumulate especially in lower areas, incl. in the basement.
  • Close doors and windows, shut off the ventilation and dampers to the chimney to make sure that ambient air cannot get inside.
  • Do not use an open flame and do not smoke. Chemicals can be flammable and explosive.
  • Follow the official warning messages from reliable information channels and the code of conduct.
  • Stay inside until you get a notice that the danger has passed.
  • Be prepared to evacuate upon receiving an official order. (See Chapter “Evacuation”). Assemble the essential items you will need.
  • In case of health problems caused by spreading of chemicals, call the emergency number 112.

What to do in a crisis

Every state does whatever it can to prevent or respond to crisis situations. Still, help will not always reach all people quickly enough because some crises can affect a large part of the population and last for days or even weeks.

Until help arrives and services are resumed, your welfare and that of your loved ones will largely depend on your own preparedness.

The web page “” contains tips on how to get prepared for various types of crisis situations and what to do if there actually is one.

EU logo Eesti lipp
Siseministeerium ja Riigikantselei
This website uses cookies. By continuing to use this website you are giving consent to cookies being used. More information | I understood