particles in the air are called thoracic particles. Coarse particles mainly include street dust. The abbreviation PM10 refers to coarse particles.
are high when 24-hour average is higher than 50 µg/m3. This level is exceeded more than 20 times a year in areas with heavy
traffic. When the limit level is exceeded, it will be recorded in a list.
You can check
the concentrations of thoracic particles on an hourly basis. The graphs show
the results both from the last 24 hours and a week which are unverified hourly
averages. The unit is a microgram of air per cubic metre (µg/m3).