The amount of land ravaged in Portugal's recent devastating wildfires is estimated to cover 122,000 hectares. Around 83% of the land is located in the north and centre of the country.

These tiny solid or liquid particles in the atmosphere increase with fire activity, and can reduce visibility and impact health

At least seven people have died after wildfires in the Aveiro and Viseu areas of Portugal, although cooler weather has helped tackle the flames. Dozens of homes have been destroyed and tens of thousands of hectares of forest and scrubland have been lost to the flames.