The influence of the environment (natural and experimental) on the composition of the exine of allergenic pollen with respect to the deposition of pollutant mineral particles

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Abstract
Pollen material of the two anemophilous plants of known allergic significance Dactylis glomerata (Poaceae) and Betula verrucosa (Betulaceae) was collected at several places (in Sweden and France) and exposed to natural or experimental conditions. This material was analyzed with Electron Probe X Microanalysis (EPMA) (System ORTEC 5000) attached to a Scanning Electron Microscope (Jeol JMS 35), or with EDAX, a 10000 X-Ray Analyser, Link System, connected to a SEM-microscope (Jeol JSM 820). It is clear that the environment has an effect on such a co-inductor or adjuvant of allergenicity as K. The possible presence of pollutant inorganic (mineral) particles on the pollen grain surface may play a role in the allergenic activity. Pollen, consequently, may be used as sensitive biological indicators of atmospheric pollution.