Original Article
 

Airborne Pollens and Their Association with Meteorological Parameters in the Atmosphere of Shiraz, Southwest Iran

Abstract

Airborne pollen is considered one of the causative agents of hay fever, allergic rhinitis, conjunctivitis, and asthma. We aimed to investigate airborne pollens in the context of Shiraz located in the southwest of Iran and find their association with meteorological parameters. 
The survey was conducted from October 2017 to September 2018, using seven days of volumetric Burkard spore trap, located in the center of the city.
A total of 5810 pollen grains/m3 belonging to 15 taxa were identified and recorded. Among them, 73.8% was the tree, while the grass, shrub, and weed constituted 13.56%, 3.5%, and 9.2% of total reported pollens, respectively. The major pollen types were Platanaceae (28.39%), Oleaceae (21.17%), Pinaceae (15.11%), Amaranthaceae (9.29%), and Brassicaceae (8.02%). A higher number of pollen counts and types were recorded in March, followed by September, while it was lower in May. Meteorological parameters were correlated with the monthly pollen counts. Wind speed was found to have a positive correlation with Platanaceae concentration. The significant correlation between pollen concentration and the temperature was positive for Poaceae, Amaranthaceae, and Plantaginaceae and negative for Rosaceae, Oleaceae, and Ulmaceae.  Poaceae and Amaranthaceae were negatively correlated with humidity and positively with Rosaceae, Oleaceae, and Plantaginaceae. A negative correlation was found between rainfall and Poaceae and Amaranthaceae, while Plantaginaceae had a positive correlation with this parameter.
The results of this study may be helpful for allergologists in the diagnosis and treatment of airborne allergic disorders due to pollen grains.

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IssueVol 20 No 3 (2021) QRcode
SectionOriginal Article(s)
Published2021-06-06
DOI https://doi.org/10.18502/ijaai.v20i3.6332
Keywords
Hypersensitivity Meteorological factors Pollen

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How to Cite
1.
Kafashan HA, Khosravi AR, Alyasin S, Sepahi N, Kanannejad Z, Mohammad Ali Zadeh Shirazi F, Karami S. Airborne Pollens and Their Association with Meteorological Parameters in the Atmosphere of Shiraz, Southwest Iran. Iran J Allergy Asthma Immunol. 20(3):294-302.