Â鶹´«Ã½Ó³»­

Speed limits in on certain routes in Brittany have been cut by 20kph in response to high levels of ozone pollution.

The limit on expressways - the region's autoroutes - have been cut due to the pollution spike, which has prompted a 'red' air quality alert.

Three departments in the historic region - Finistère, Côtes-d'Armor and Ille-et-Vilaine - are on 'red' pollution alert. In Saint-Brieuc, Saint-Malo and Brest, pollution levels are said to score eight on a scale of one to 10 - indicating that the air quality is 'very bad', air quality monitor Air Breizh said.

Locals are also warned to limit outdoor activities while the air quality warnings are in place.