A preliminary survey of pollens in the atmosphere of Khaparkheda Dist. Nagpur (m.S.) India

Atmosphere is composed of both biotic and abiotic components. Among biotic components pollen and fungal spores contribute major amount of aerospora. Release of such components in the environment is depends upon seasonal variation. Present study deals with the study of concentration of pollens present in the atmosphere. Pollen represent the smallest reproductive structure produce in the anthers and at maturity transferred to female part by wind, water, insect, birds etc. The pollen samples were collected from two different sampling location sites (New Bhanegao and Chicholi) Khaparkheda, Nagpur district, Nagpur during January2013 to December 2013. A total of 10313 pollens were trapped during the collection of samples. Total 29 pollen types were identified. The major contributor to the pollen was Poaceae (23.59 %), Amaranthaceae (15.55 %), Parthenium hysterophorus (13.29 %), Carica papaya (8.03 %), Butea monosperma (6.39 %) and Boerhaavia diffusa (5.50 %). Two major pollen seasons were recognized, i.e., January to April and August to October, although pollen was recorded in varying concentrations all over the year. Variations were observed, with higher pollen count at the site having dense vegetation. This study gives the general idea of pollen morphology and range of various plant species found in both the sapling sites of Khaparkheda. It will be helpful for palynologist and local allergologists for effective diagnosis and treatment of allergic patients.