Author(s):
Galán C. 
; Antunes, C.M. ; Brandao, R. M. ; Torres, C. ; Garcia-Mozo, H. ; Caeiro, E. ; R. Ferro ; Prank, M. ; Sofiev, M. ; R. Albertini ; U. Berger ; L. Cecchi ; Celenk, Sevcan ; Grewling L. ; Jackowiak, B. ; Jäger, S. ; Kennedy, Roy ; A. Rantio-Lehtimäki ; G.Reese ; I. Sauliene ; Smith, M. ; Thibaudon, M. ; Weber, B. ; Weichenmeier, I. ; Pusch, G. ; Buters J.
Date: 2013
Persistent ID: http://hdl.handle.net/10174/9887
Origin: Repositório Científico da Universidade de Évora
Subject(s): olea; pollen; aeroallergens; Hialine project; Ole e; outdoor environment
Description
Pollen is routinely monitored, but it is unknown whether pollen counts represent
allergen exposure. We therefore simultaneously determined olive pollen and Ole e
1 in ambient air in C ordoba, Spain, and Evora, Portugal, using Hirst-type traps
for pollen and high-volume cascade impactors for allergen.
Pollen from different days released 12-fold different amounts of Ole e 1 per
pollen (both locations P < 0.001). Average allergen release from pollen (pollen
potency) was much higher in C ordoba (3.9 pg Ole e 1/pollen) than in Evora
(0.8 pg Ole e 1/pollen, P = 0.004). Indeed, yearly olive pollen counts in C ordoba
were 2.4 times higher than in Evora, but Ole e 1 concentrations were 7.6 times
higher. When modeling the origin of the pollen, >40% of Ole e 1 exposure in
Evora was explained by high-potency pollen originating from the south of Spain.
Thus, olive pollen can vary substantially in allergen release, even though they are
morphologically identical.
