Exceptional air pollution will give way to the weekend at the latest
Weather|The air quality returns to normal by the weekend as the wind turns to blow from the west.
From the beginning of the week Exceptionally high concentrations of fine particles were measured in Finland. On Tuesday, the Finnish Meteorological Institute warned that the air quality may be reduced in the next few days.
However, on Wednesday, air quality has improved during the day, says a meteorologist on duty at the Finnish Meteorological Institute Jari Tuovinen.
The air quality in the Helsinki metropolitan area has been at a satisfactory level.
“Rainfall and fog have caused air quality to improve in the Helsinki metropolitan area. The fine particles have landed on the ground, so there are not so much in the air. ”
Atmospheric Smooth particle concentrations have been elevated due to the wide-ranging long-range long-distance flowing from Eastern and Central Europe.
For example, Kaliningrad, Ukraine and Romania have wildfires. In addition, it has been cold in Eastern Europe, whereby houses have been heated, for example, with wood and coal.
The wind blowing to the eastern part of the country comes between the south and the south, which is why the air quality is still in many places.
“There is a narrow rainfall in the east, so there will probably be a better way to go,” Tuovinen says.
Instead, the wind in Western Finland is blowing from Sweden, which has led to better air quality there.
What What does the coming days look like? According to Tuovinen, the wind is weakening on the south coast, which is why air quality is unlikely to deteriorate more.
As the weekend approaches, the West air flow becomes more intensified, which will return to its normal level at the latest, Tuovinen says.
“During the near turn, we can see some slight particle concentrations. However, it wasn't like Tuesday and Wednesday morning, they are already behind. ”
On Tuesday It was reported that impaired air quality can cause health damage. However, Tuovinen does not believe that the air quality will no longer cause significant disadvantages.
“The effects start to come when the air quality goes for a bad and very bad side for a long time, for at least six hours.”
Although the air quality in Finland has been exceptionally poor, the figures for, for example, the world's most polluted metropolitan, New Delhi, the world's most polluted city, did not get there.
“On a general level, the air quality in New Delhi is five or even ten times worse. It's a different world, ”Tuovinen estimates.
