Aircraft Samplers

Pollen and spores have also been sampled from aircrafts. Most of these samplers have nonisokinetic entrances, but some isokinetic samplers for use on light aircrafts have been developed. Upper air-spora of the atmosphere in Bangalore, India was studied by Agashe and Chatterjee (1986) by using the aircraft sampling technique. They sampled the air at 305 m, 610 m and 915 m above ground level for a period of seven months (October 1984 to April 1985) with nutrient agar Petri plates and glycerine-coated micro slides exposed to the air stream outside the cockpit of a light trainer aircraft flown at a cruising speed of 115 kmph. It is interesting to note that major types of fungal spores and pollen trapped at all the altitudes were: Cladosporium, Penicillium, Alternaría, Aspergillus, Smut spores, Uredospores and Parthenium hysterophorus, Eucalyptus species, Casuarina equisetifolia, Ricinus Communis and Poaceae. They observed that pollen grains were maximum at lower heights with minimum at 915 m.

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