Aeropalynological Studies of the University of Lagos Campus, Nigeria
Keywords:palynomorphs, aeropollen, hayfever, anemophilous, Lagos
Aeropalynological studies were conducted in four selected sites at the University of Lagos campus, in the months of February, March, April and May of 2007. One pollen-collecting bucket containing 50 ml glycerol, 10 ml formaldehyde and 5 ml phenol, per site, was placed at each sampling site, namely the Botanical Garden, Lagoon Front, Engineering Department and Computer Center. The mixtures which attracted aerospore from the atmosphere were acetolysed, observed under the microscope and photomicrographs of palynomorphs were taken. The abundance of recovered pollen ranges from 64, in February to 132, in May. Recovered palynological assemblage from chemical engineering sampling point had the highest in February, Lagoon Front location had the highest in March, Computer Centre location had the highest in April and Lagoon Front had highest number of palynomorphs during May. A total of 393 palynomorphs were counted at all, belonging to 22 families. Poaceae were abundant representing 26.33% of the total pollen, Asteraceae represents 12.72%, Mimosaceae (8.89%), Ferns spores (8.64%), Arecaceae (5.85%) and Euphorbiacae (5.34%) among others. The palynomorphs abundance and diversity hits the peak in May which corresponds to the wettest month of the sampled period.
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