The current heatwave will continue on Monday with slightly higher temperatures than experienced in Sunday, bringing with it an alert about ozone, Meteo-France warned on Sunday.

The west of the PACA region will be the worst affected, with the Alert 1 threshold already crossed on Sunday in the Bouches-du-Rhône and Vaucluse Departements. Traffic speed limits have been lowered by 20 kph on Monday.

“Rising temperatures, strong sunshine and weak winds (…) favour the formation of ozone by photochemistry from pollutants” emitted by “vehicle traffic” and “industry”, according to a press release on Sunday from the AtmoSud air quality monitoring body, as cited by Nice Matin. In the agricultural sector, the spreading of mineral and organic fertilisers must be postponed, BFMTV reports.

“On Monday the maximum in the PACA region with be between 37 and 40 degrees,” Meteo-France said. The Orange Alert for the Departement has been extended.

The forecast for Monaco on Monday is 32 degrees, but this could be surpassed. On Sunday 33.9 was recorded at Nice-Rimiez, although the forecast had been 29.

Temperatures are forecast to fall by a degree or two from Tuesday.