Introduction. Exposure to allergens is pivotal in determining sensitization and allergic symptoms in individuals. Pollen grain counts in ambient air have traditionally been assessed to estimate airborne allergen exposure. However, the exact allergen content in ambient air is unknown. HIALINE therefore monitored atmospheric concentrations of Betula, Poaceae and Olea pollen grains and matched their major allergen...
This study aims to determine the potential origin of Olea pollen recorded in Badajoz in the Southwest of the Iberian Peninsula during 2009–2011. This was achieved using a combination of daily average and diurnal (hourly) airborne Olea pollen counts recorded at Badajoz (south-western Spain) and Évora (south-eastern Portugal), an inventory of olive groves in the studied area and air mass trajectory calculations c...
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)....
Introdução: O pólen da família das Poaceae (gramíneas) é uma das principais fontes de aeroalergénios no mundo, particularmente na Europa Mediterrânica. Representa, por isso, um importante factor de risco de asma, rinite e/ou conjuntivite alérgica e constitui a principal causa de polinose em Portugal. Objectivo: Analisar a variação intradiária das concentrações de pólen de gramíneas na atmosfera das 5 estações d...
Regional scale transport of olive pollen can result in increased nighttime concentrations of this important aeroallergen. This could be particularly important in Mediterranean countries where people can be outdoors during this time due to climate and lifestyle. Such studies are valuable for allergy sufferers and health care professionals because the information can be incorporated into forecasts, the outputs of...
This study aims to determine the potential origin of Olea pollen recorded in Badajoz in the Southwest of the Iberian Peninsula during 2009-2011. This was achieved using a combination of daily average and diurnal (hourly) airborne Olea pollen counts recorded at Badajoz (southwestern Spain) and Évora (southeastern Portugal), an inventory of olive groves in the studied area and air mass trajectory calculations com...
The syrnptorns of pollen allergy by patients with pollinosis are the target of this study. Patients are frorn the region of Évora, and clinical data were collected at the Hospital of the Holy Spirit in Évora. The data collected is related to the years 2001-2007 for the rnonths of March to June. The syrnptorns exhibited by patients, whose condition was deterrnined by allergological test, were daily recorded over...
lhese resuíts show that Phl p 5 is prelerenlially associated with pollen grains, allhough a small percentage may also be lound in smaller partiele sizes. lt was recorded a yearly varialion in airlJorne pollen and Phl p 5. The highest polency pollen was recorded in 2009 bul the highesl load ln aeroallergen was registered in 2011. ln conclusion, aeroallergen quantification together wilh airborne pollen counts, ma...
These resulls show thal Ole e 1 is preferenlially associaled wilh pollen grains, allhough a small percenlage may also be found in submicronic particies. It was recorded a yeariy variation in airborne pollen and Ole e1. The highesl polency pollen and the highesl allergen index were recorded in 2010, a season wllh lhe lowesl pollen index. ln conclusion, aeroallergen quanlification may contribute togelher with air...
ln general it has been observed similar profiles lor airborne pollen and aeroallergens content in the air, being aeroal/ergens more associated to XL Iraction stage. On the olher hand, ii has been delected al/ergenic activity out Irom pol/en season, especiaily in the case 01 M stage. Smaller particles are more exposed to medium-Iong distant transporto Moreover, results have provides strong evidence that similar ...
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