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.

Nine aircraft were backing more than 700 firefighters combating flames near the town of Castro Daire in the district. Spain, Italy, France and Morocco have sent water-bombing aircraft. Data from the European Forest Fire Information Service showed that large-scale blazes had burned an area of more than 105,

Portugal has brought under control the remaining forest fires it battled this week in the north of the country, rescuers said on Friday.More than 120,000 hectares across Portugal had been burnt by wildfires since the start of the year,

Portugal's firefighters have mastered most of the deadly forest fires in the north of the country, according to official data Thursday.