| Pak. J. Bot., 37(3): 519-530, 2005. | Back to Contents | ||||
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Updated: 09-07-09 | ||||
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DIFFERENCES IN CONCENTRATIONS OF ALLERGENIC POLLENS AT DIFFERENT HEIGHTS IN DENIZLI, TURKEY A. CELIK, A. GUVENSEN1, I. UYSAL2 AND M. OZTURK1*
Abstract:
An investigation was carried out on the airborne pollen fall in the
State of Denizli during the year 2000. Two Durham samplers were placed
at different heights above the ground. The averages of pollen counts
from 2 samplers were calculated at the end of year. The pollen from
34 flowering plant taxa (20 arboreal +14 non-arboreal) with a total
average of 6856 grains/cm2 dominated the atmosphere in this State. Out
of these 83.9 % belonged to the arboreal, 16.10 % to the non-arboreal
plants and 6.25% were from the family Poaceae. The pollen counts from
two heights were different. At higher level (15 m) the total pollen
concentration was 7717 per cm2, out of which 6471 per cm2 were of arboreal
origin and 1246 per cm2 non-arboreal ones. At the lower level (1.50
m) it was 5995 per cm2, out of which 5033 per cm2 belonged to the arboreal
and 962 per cm2 to the non-arboreal group. The maximum number of pollen
counts was recorded from the arboreal plants because this area gets
enough precipitation for the growth of arboreal species The highest
number of pollen in the arboreal plants followed the trend as; Pinaceae
(40.92%), Cupressaceae/Taxaceae (14.16%), Quercus (9.8%),
Olea europaea (7.03%) and Platanus orientalis (5.69%), and
for non-arboreal representatives these were Poaceae (6.25%) Chenopodiaceae/
Amaranthaceae (2.67%), Fabaceae (1.65%) and Carex (1.22%). Maximum
pollen density was recorded during the spring season and minimum in
autumn. During this study period the number of allergic patients treated
in the hospitals was 1552 persons, with an outstanding increase during
the months of April, March, May and August.
Department of Botany, Faculty of Science and Arts, Pamukkale University
Denizli, Turkey. |
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