Anthropogenic climate change is worsening North American pollen seasons
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” . The impact of climate-change for hayfever-patiënts is a very interesting topic. A few questions about his research. 1.What […]
Winddirection and pollenpressure
Are winddirection, pollenconcentration and pollenpressure correlated? It very much depends on your location. This graph shows that for the Netherlands a south-east wind is less favourable, as it can bring pollen from Germany and Belgium. When you live on a small island like Helgaland, every winddirection is favourable. Besides winddirection also windspeed is correlated.
Windspeed and pollenconcentration
Are windspeed and pollenconcentration correlated? It seems that in periods with a low windspeed the average complainlevel is higher that during periods of high windspeed. A more detailed graph is not available yet.
Temperature and pollenconcentration
Are temperature and pollenconcentrations related? This graph shows the correlation between the average complainlevel and the temperature during two months.
Rain and pollenconcentration
Are rain and pollenconcentrations correlated? There seems little doubt about that. Rain can wash the air clean from pollen. This graph shows the correlation between the average complainlevel (purple) and rainfall (blue) during two months. The rainfall seems to press down the complainlevel. On the other hand a short rain shower, can trigger pollenrelease by […]
Humidity and pollenconcentration
Relative humidity (RH) is the ratio of the partial pressure of water vapor to the equilibrium vapor pressure of water at a given temperature. Relative humidity depends on temperature and the pressure of the system of interest. It requires less water vapor to attain high relative humidity at low temperatures; more water vapor is required […]