Mesoscale atmospheric transport of ragweed pollen allergens from infected to uninfected areasReport as inadecuate

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International Journal of Biometeorology

, Volume 60, Issue 10, pp 1493–1500

First Online: 02 February 2016Received: 06 July 2015Revised: 07 December 2015Accepted: 18 January 2016


Allergenic ragweed Ambrosia spp. pollen grains, after being released from anthers, can be dispersed by air masses far from their source. However, the action of air temperature, humidity and solar radiation on pollen grains in the atmosphere could impact on the ability of long distance transported LDT pollen to maintain allergenic potency. Here, we report that the major allergen of Ambrosia artemisiifolia pollen Amb a 1 collected in ambient air during episodes of LDT still have immunoreactive properties. The amount of Amb a 1 found in LDT ragweed pollen grains was not constant and varied between episodes. In addition to allergens in pollen sized particles, we detected reactive Amb a 1 in subpollen sized respirable particles. These findings suggest that ragweed pollen grains have the potential to cause allergic reactions, not only in the heavily infested areas but, due to LDT episodes, also in the regions unaffected by ragweed populations.

KeywordsAirborne allergens Amb a 1 Ambrosia Pollen allergy Subpollen sized respirable particles Electronic supplementary materialThe online version of this article doi:10.1007-s00484-016-1139-6 contains supplementary material, which is available to authorized users.

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Author: Ł. Grewling - P. Bogawski - D. Jenerowicz - M. Czarnecka-Operacz - B. Šikoparija - C. A. Skjøth - M. Smith


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