Belgium activates its alert plan in response to heatwave and ozone pollution
The Risk Management Group (RMG) officially activated the alert phase of the "Ozone and Heatwave" plan on June 23, 2026. This decision comes as temperatures rise across Belgian territory, leading to a degradation in air quality.
The ozone plan is implemented when concentrations of this polluting gas exceed certain thresholds in the atmosphere. Ozone is primarily formed on very sunny and hot days due to the reaction between atmospheric pollutants and the sun's ultraviolet radiation.
Health authorities recommend that the population, particularly the most vulnerable such as children, seniors, and those suffering from respiratory problems, be very vigilant. It is advised to avoid intense physical exertion outdoors during the hottest hours of the day.
To limit risks, it is also advised to stay in cool places, drink water regularly, and wear light clothing. The government reminds the public that these precautionary measures are essential to avoid heat-related illness and respiratory tract irritation caused by pollution.
The situation will be closely monitored by experts over the coming days. Authorities invite citizens to regularly consult official websites for updates on the evolution of air quality and current health recommendations.