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What are pollen counts?

In: Health, Allergies [Edit categories]

Answer:

Pollen grains are small (male) plant cells, usually yellow in color produced by flowers. For a seed to form pollen has to be transfered from the male anthers to the female stamen part of a plant flower. Some plants get insects to carry the pollen from flower to flower for them (rewarding the insect with nectar for doing this). Other species of plant rely on the wind to blow their pollen around. These wind pollinated plants (most grasses and some trees) need to produce vast quantities of pollen to ensure that some of it gets to a female flower and this can cause problems for people that are allergic to pollen, it gives them hay fever.
In order to warn people who suffer from hay fever when to take their medicines, the weather service measure the number of pollen grains in the air at regular intervals and publish this as the pollen count.

First answer by Fwmh. Last edit by Fwmh. Contributor trust: 979 [recommend contributor ]. Question popularity: 1 [recommend question].

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Relevant answers:

What city has the lowest pollen count?
according to this source, Cleveland, OH has the lowest pollen counts of a "midwest" city. http://www.allergydiagnostics.com/news.htm
Which countries have the lowest pollen count?
Norway, Finland, Sweden, Denmark
What state has the highest pollen count?
3332 is nothing! Yesterday, Wednesday April 7, 2010, Atlanta had a pollen count of 5,733. The record for Atlanta is 6,013, set on April 12, 1999.
Is the pollen count less when it rains?
Yes. The rain prevents the Pollen from from being air-borne. Answer Generally, yes. The pollen grains are "washed out" of the atmosphere.
What is the range of pollen count?
Pollen count is the measurement of the number of grains of pollen in a cubic meter of air. The higher the number, the more people will suffer if they are allergic to a particular pollen. Usually, the...