RT Journal Article
T1 Environmental factors affecting the start of pollen season and concentrations of airborne Alnus pollen in two localities of Galicia (NW Spain)
A1 Rodríguez Rajo, Francisco Javier
A1 Dopazo Martínez, Ángeles
A1 Jato Rodríguez, Victoria
K1 Alnus
K1 Spain
K1 Pollen
K1 Aerobiology
K1 Predictive models
AB Alnus pollen is an early component of the annual atmospheric aerosol of thenorth-west regions of Spain, which causes the first occurrence of allergic symptoms.Seasonal and intra-daily variation of Alnus pollination, and the influence that mainmeteorological parameters exert, was studied in this paper. Monitoring was carried outfrom 1993–2002, by using two Lanzoni VPPS 2000 volumetric samplers. Once theatmospheric behaviour of this pollen had been identified, the final objective was toelaborate predictive models to determine the onset of the Alnus pollen season and itsconcentrations during the pollination period in two localities of north-west Spain(Santiago and Ourense). Winter chilling required to overcome the bud-dormancy periodwas similar in both cities, with around 800 Chilling Hours (C.H.) and 5.5ºC thresholdtemperature. Calculation of heat requirement for bud growth was carried out withmaximum temperature, with around 50 Growth Degree Days (G.D.D.ºC) needed, with6ºC threshold temperature. Data from 2002 were used in order to determine the realvalidity of the models. This year was not taken into account to establish theaforementioned models. The variation between the predicted start of the pollen seasonand the observed season was smallest in Ourense. Verifying the proposed models forpredicting daily mean concentrations of Alnus pollen during the pollen season showsthat the predicted curves fits the observed variations of daily mean concentrations.
PB Institute of Rural Health (Lublin)
SN 1232-1966
YR 2004
FD 2004
LK http://hdl.handle.net/10347/22847
UL http://hdl.handle.net/10347/22847
LA eng
NO Rodriguez-Rajo, F. J., Dopazo, A., & Jato, V. (2004). Environmental factors affecting the start of pollen season and concentrations of airborne Alnus pollen in two localities of Galicia (NW Spain). Ann Agric Environ Med, 11(1), 35-44.
NO This work was funded by the XUGA-PGDIT01PAT38301PR project
DS Minerva
RD 6 jun 2026