PJB-2018-1605
Survey of airborne pollen in Shiraz, Iran during 2012
Mozhgan Moghtaderi, Homa Rajaei and Parisa Yazdanpanah
Abstract
Airborne pollen grains in the atmosphere are important aeroallergens that can lead to allergic diseases in susceptible people. The determination of pollen type and quantity not only presents botanists with valuable information about vegetation of the area under study, but also provides allergologists with tools for accurate diagnosis and proper medical treatment. An aerobiological survey was carried out in the atmosphere of the city of Shiraz, Iran, by means of a Hirst type volumetric sampler, from January 1st to December 31st 2012. A total of 12270 pollen grains belonging to 11 taxa were identified and recorded, of which 82.44% were tree or shrub, 7.24% herbaceous and 10.32% grass type. The majority of the investigated pollen grains were from Pinus sp., Buxus sp., Cupressaceae, Fraxinus sp. and Poaceae. The pollen count reached its highest levels in March and April, and its lowest levels in July and December. A correlation analysis was established between monthly pollen type and count, and some meteorological parameters. This aerobiological survey shows the existence of, and seasonal variation of different types of pollen grains in the atmosphere of Shiraz. The results of the survey may help allergologists with the diagnosis and treatment of airborne allergies due to pollen grains.
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