Measuring station in the Île-de-France identifies “very unusual origin from heavy pollution with sulfur and sulfates.”
Between Monday night and Wednesday, the Icelandic volcano Holuhraun caused very unusual air pollution over much of northern France, warned Airparif the Ile Association monitoring air quality.
According to the Icelandic Environment Agency, Holuhraun is emitting 60,000 tons of SO2 per day, far exceeding all pollution SO2 emitted by transport, energy, home heating in all Europe, which is an average of 14,000 tonnes per day.
More than four times the pollution caused by humans in all of Europe! Including transport, energy and home heating!
Looking at air mass trajectories for five days, an alert was issued in France by the Atmospheric Sciences Laboratory analysis of climate and environment (LSCE).
“On Monday 22 evening, I found by checking the instruments there was a high level of fine particles, and that they were not as sulfates, which normally never happens,” says Jean by phone Sciare, aerosol specialist at LSCE.
A volcano dirtier than all of Europe
“Normally, sulfates are emitted by burning coal in Eastern Europe, and when the clouds come to us they are mixed with other pollutants. But then, there were only sulfates. By calling colleagues Ineris, they learned that they had measured their side peak SO2 (sulfur dioxide) in Picardie, Nord-Pas-de-Calais and Champagne-Ardenne. When I heard that, I doubted that I was in the presence of pollution from a volcanic eruption. ”
By tracing a posteriori trajectories of air masses which then flew over France, the researcher realized that the cloud flew over Iceland. “I was the first to raise the alarm when the air masses containing volcanic dust as they flew over the North Sea, avoiding Britain, made landfall in northern France and are descended to the center of France before returning to the Atlantic, “said Sciare.
Link to article in French
Des poussières volcaniques islandaises polluent le nord de la France
Thanks to Piers Buesnel for this link