measured for pollutant concentrations of gaseous particulates in different
sizes and for weather factors. You can monitor
the current air quality on an hourly basis via the links on the left. The
monitoring results are published in the annual reports on air quality in June.
are referred to in pictures with abbreviations such as PM2.5 = fine particles
or O3 =ozone, which are the most crucial impurities in the city air from the
point of view of health.
HSY also monitors
the air quality in Uusimaa and in the area of the Ämmässuo Waste Treatment
Centre (in Finnish). You can check the current air quality of the whole of Finland
on the Air Quality portal.