daily variation patterns of airborne allergenic pollen in southwestern spain.the study was carried out using a burkard sampler installed on the roof terrace of the school of pharmacy, seville, for two years (1995 and 1996). eight pollen types described in the literature as having allergenic activity were chosen. they were poaceae, olea europaea, chenopodiaceae/amaranthaceae, plantago, rumex, urticaceae (including parietaria), cupressaceae, and platanus hispanica. the types were grouped according to the similarity of their pattern of intradiurnal variation in pollen conce ...19989615301
[allergenic pollens in spain].allergenic pollens that cause rhinoconjuctivitis and/or asthma are those from trees or plants that pollinate through the air (anemophilic pollination) and not through insects (entomophilic pollination). although pollen grains would seem to be too large to easily reach the intrapulmonary airways, the relationship between pollen counts and the presence of asthmatic symptoms is only too evident. this is probably because the allergens inducing seasonal asthma are not only found within pollen grains ...200415120027
deposition of particulate matter of different size fractions on leaf surfaces and in waxes of urban forest species.particulate matter (pm) is an air contaminant in urban and industrial areas that often exceeds limit values, creating serious problems due to its harmful effects on health. planting trees and shrubs as air filters is a way to improve air quality in these areas. however,further knowledge on species effectiveness in air purification is essential this study compared four species of tree (acer campestre l, fraxinus excelsior l, platanus x hispanica mill. ex muenchh. 'acerifolia', tilia cordata mill. ...201121972570
particulate matter on foliage of 13 woody species: deposition on surfaces and phytostabilisation in waxes--a 3-year study.particulate matter (pm) as an air pollutant can be harmful for human health through allergic, mutagenic and carcinogenic effects. although the main focus is on decreasing air pollution, after pm has been emitted to the atmosphere, one ofthe realistic options to decrease it's concentrations in urbanized area will be phytoremediation. this study compared the capacity to capture pm from air of seven tree species commonly cultivated in poland (catalpa bignonioides walter, corylus colurna l., fraxinu ...201323488010
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