PARIS: Heavy smoke from intense wildfires in Canada has reached northwestern Europe, the European Union`s climate monitoring service said on Tuesday.

The huge plumes are at very high altitude and do not pose an immediate health risk, it said in a statement.

`Smoke originating from the wildfires in the Canadian provinces of Manitoba and Saskatchewan has been transported across the Atlantic,` the Copernicus Atmosphere Monitoring Service (CAMS) said.

Satellites tracked the smoke in mid-May, with some plumes reaching as far east as Greece and the eastern Mediterranean.

`A second, much larger, smoke plume crossed the Atlantic during the last week of May, reaching northwestern parts of Europe on June 1,` CAMS said.

Additional plumes are expected to shade the continent in the coming days.

Wildfire smoke is comprised of gaseous pollutants such as carbon monoxide, along with water vapor and particle pollution, which can be particularly hazardous to health. A high concentration of carbon monoxide is expected to pass over northwestern France, including the Paris Basin, on Tuesday.-AFP