pollen
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 […]
Deep learning for pollen allergy surveillance from twitter in Australia
Australian researchers looked into the possibilities of using tweets to map hayfevercomplains using deep learning technology. “Deep learning for pollen allergy surveillance from twitter in Australia“ A few questions about this project to the authors of the article from the Institute for Sustainable Industries & Liveable Cities, Victoria University, Melbourne. 1. What was the goal […]
Different techniques to identify pollen.
As pollengrains are very, very small and are floating through the air, identifying them is a pretty difficult job. You’ll can use a microscope to identify the type of pollen. Pollengrains are not like fashionmodels who can stand still and wait for the phototgrapher to take shot. So often the pollengrains are collected by a […]
Process of Automatic Pollencounting
The process starts bottom left with trees, grasses or herbs producing pollen, which become airborn. Step 1. Collect & fix pollen Collecting these pollen from the air with some kind of vacuum cleaner. Of course the volume of air processed in a certain period of time is important since you want information about the concentration […]
Pollencount by hour
This graph is an example of pollenconcentration during three different types of days. Day 1 shows airborn pollen between 9:00 and 17:00. Day 2 shows a pollenpeak during the early morning hours. Day 3 shows a peak in the evening. Weatherconditions, like a rainshower, a sunny or cloudy day, have big influence on the hourly […]
Poa annua, meadow grass
About Poa annua Poa annua, or annual meadow grass (known in America more commonly as annual bluegrass or simply poa), is a widespread low-growing turfgrass in temperate climates. Though P. annua is commonly considered a solely annual plant due to its name, perennial bio-types do exist. ‘Poa’ is Greek for fodder. It is one of […]
Mugwort, Artemisia vulgaris
About Mugwort, Artemisia vulgaris Artemisia vulgaris (mugwort or common wormwood) is one of several species in the genus Artemisia commonly known as mugwort, although Artemisia vulgaris is the species most often called mugwort. This species is also occasionally known as riverside wormwood, felon herb, chrysanthemum weed, wild wormwood, old Uncle Henry, sailor’s tobacco, naughty man, […]
Ambrosia
About Ambrosia Ragweeds are flowering plants in the genus Ambrosia in the aster family, Asteraceae. They are distributed in the tropical and subtropical regions of the New World, especially North America, where the origin and center of diversity of the genus are in the southwestern United States and northwestern Mexico. Several species have been introduced […]
Tree calendar
This calendar shows when specific trees are flowering (in the Netherlands). The calendar is video-based. Every tree is explained by a short video. Corylus aveilana Alnus incana Alnus glutinosa Salix viminalis Taxus Bacatta Populus x more Carpinus Betulus Betula pendula more information >> Fagus sylvatica Quercus robur […]
Herb calendar
This calendar shows when specific types of herbs are flowering (in the Netherlands), each herb is explained by a short video. Parietaria judaice and Ambrosia artemisiifolia are the most allergenic. Most allergenic herbs: Rumex acetosa Plantago lanceolata Parietaria judaica more information >> Urtica dioica Artemisia vulgaris more information about Artemisia vulgaris >> […]