Lower threshold for smog alerts

The Flemish and Brussels-Capital regions have implemented a new system to warn the populace when the concentration of fine dust in the air is higher than 50 micrograms per cubic metre. People will be informed via text messages, social media and traffic signs about the nature of the pollution and the impact on health.

Previously, warnings, or smog alerts, were issued when the concentration was higher than 70 micrograms per cubic metre. During a smog alert, there is a speed limit of 90 km/h on motorways.

“People sensitive to air pollution can be affected by 50 micrograms,” Frans Fierens of the Belgian Interregional Environment Agency told VRT. The new measure should help protect the elderly, children and those suffering from asthma. Notifications will advise them to avoid extensive physical activity outside during smog alerts.

The system is also meant to raise more awareness among drivers, encouraging them to leave the car at home and use public transport on such days. Experts believe that fine dust causes premature deaths. According to a European study, fine dust pollution costs Belgium between €10 and €30 billion a year.

Photo: Craig Nagy/Flickr