The French parliament on Wednesday passed a "green growth" energy transition law that reduces the country's dependence on nuclear power by 25 per cent.
Air pollution in France is costing the country 101.3 billion euros each year, according to a French Senate committee report released Wednesday.
Trains were delayed all over the Paris region this Wednesday because of the heatwave that has hit France this week. Pollution levels will also rise with a red alert expected on Friday.
Speed limits were reduced 20kmph in the Paris region and north-west France on Friday and limits imposed on lorries passing through the capital on the third day of high pollution Friday.