The birch pollen season is at its height in Central Europe, with high levels recorded across the continent. Southern Scandinavia is starting to feel the birch as well, and will see increasing pollen levels the next ten days.
Temperatures are rising in Europe and birch pollen levels will be high across Central Europe and southern UK. The front is moving northwards, and Southern Scandinavia and Finland will also see birch pollen levels on the rise.
Oslo, Norway, is like many other cities under Corona virus lockdown. Less traffic let us expect good air quality, but the opposite proved true for the end of March. We investigate reasons behind the high PM2.5 values.
We are pilot testing our air quality monitors and have started to dig into the first results. We had expected local variations in PM-levels, but it turns out the source is probably found far away from the neighbour's wood burning stove.