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Spatio-temporal monitoring and modelling of birch pollen levels in Belgium
~ 50%. The slopes of the linear correlation increased on average with ~ 60%. Finally, SILAM is able to capture the threshold of 80 pollen grains m−3 exposure from the observations. Health Topics: ...
Thirty-four years of pollen monitoring: an evaluation of the temporal variation of pollen seasons in Belgium
the concentration threshold of 80 pollen grains/m3 was clearly observed. Concerning temporal variations, the pollen season has tended to end earlier for birch, ash and plane and the peak concentration ...