A very unique way of collecting pollen trapped in a person's hair was deviced by Penel and De Clercq (2006) in France. Every individual has a natural pollen trap such as hair or clothes. Hair is a very significant pollen trap since hair by its nature, 'follows' you everywhere, 24 hours a day. It was surprising to note that after hiking in a ragweed field in mid-September a person's hair yielded up to 140,000 pollen grains trapped. The pollen were recovered by a simple hair wash. Obviously a person's surroundings, particularly the vegetation have a clear impact on the number and types of pollen trapped in the hair.
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