INVESTIGADORES
NITIU Daniela Silvana
artículos
Título:
Aeropalynologic analysis of la Plata City (Argentina) during 3- year period
Autor/es:
NITIU, D.S
Revista:
AEROBIOLOGIA
Editorial:
Kluwer Academic Publishers
Referencias:
Lugar: Netherlands; Año: 2006 vol. 22 p. 79 - 87
ISSN:
0393-5965
Resumen:
A continuous aeropalynologic survey of the atmosphere of La Plata was carried out between July
1998 and
June 2001 in order to study flowering development from winter to summer using a Lanzoni
volumetric
spore trap. The total pollen spectrum was represented by 79 pollen types. Between 10 and 12
pollen types
showed a relative concentration of more than 1% of the annual total. Airborne pollen was mainly
represented
by Platanus, Fraxinus, Cupressaceae, Poaceae, Urticaceae, Cyperaceae, Myrtaceae, Celtis,
Casuarina
and Morus during the 3-year period. Acer and Ambrosia pollen types were only dominant in the first
2 years. Maximum absolute concentrations were recorded in the the July 1998June 1999 period,
and the
minimum concentrations were recorded in the July 2000June 2001 period. The contribution of the
arboreal pollen grains was higher than 68% relative to the annual total for each year. Two periods
of
maximum pollen emissions were found for each year: pollen from aboreal taxa predominated from
July to
October, and pollen from herbaceous taxa predominated from November to March. There was very
little
pollen in the atmosphere between April and June. The maximum arboreal and herbaceous pollen
emissions
were recorded during hours of daylight: at 10:00 and 14:00 hours.