LLUVIA DE POLEN DE LA CIUDAD DE OAXACA, MÉXICO

Abstract

Pollen rain from Oaxaca city and its surroundings was analyzed in order to determine the
airborne plant taxa. There were established
11 collect sites: three parks in the city and
eight localities in the outskirts. All samples
were acetolyzed and observed under optical
microscope. The pollen spectra for each
place were obtained and there were applied
classification and ordering methods. A total
of 39 pollen types were recognized, nine of
them were identified to family level, 26 to
genus and four to species level. The pollen
from Pinus, Alnus, Quercus and Cupressus genus as well as families Asteraceae,
Poaceae and Amaranthaceae-Chenopodiaceae type were found in all samples. Pollen
grains from the arboreal stratum were the
best represented. Seventeen pollen types are
potentially allergenic.