Welcome to www.hayfeverradar.eu, a website dedicated to providing information and resources for people interested in hayfever and pollen. Hayfever, also known as allergic rhinitis, affects millions of people worldwide and can have a significant impact on quality of life. Pollen, a common trigger for hayfever, varies in concentration and type depending on location, season, and weather conditions. This website is all about weatherconditions, hayfever, forecasting, mapmaking and airborn pollen. You can find information about weather, pollencounting, trees, grasses and herbs.


Various interviews with researchers doing research related to pollen. New interview about SYLVA >>


Posts about several aspects of developing forecast models. 


One of the most quoted papers about pollen and climatechange is written by William Anderegg, School of Biological Sciences, University of Utah in Salt Lake City.

Anthropogenic climate change is worsening North American pollen seasons.


Thunderstorm asthma is a very interesting topic. What happens to pollen and pollen particles during such a storm? How do you measure this? Some questions about this research done by Betsy Stone and her team from Iowa University

Characterization of atmospheric pollen fragments during springtime thunderstorms


Counting each type and concentration of airborn pollen is a very important part of forecasting.  Posts about counting pollen.


As weather and climate are complex dynamic systems, the flowering period of allergenic plants  can  vary a lot as well. Calendars are a good way to get some insight in floweringperiods of each species. Here some posts about calendars.



The weather has a major influence on the amount of airborn pollen. But “the weather” is a complex combination of various aspects. Here some posts about these aspects.


Meteograms can be a very interesting interface for explaining pollenlevels, here you can find some examples >>



Recently a paper was published about the correlation between airborne pollen and infections with the SARS-CoV-2 virus. This research was done by Thanos Damialis, airobiologist and researcher at Department of Environmental Medicine, Faculty of Medicine at the University of Augsburg.

Airborn pollen related to Corona infection >>


ZAUM published a new website: www.pollenscience.eu. The aim of the Pollen Science website is to collect and graphically display the data of different measuring networks and stations for pollen flight in a database. Read more >>