Airborne pollen of Ambrosia in Burgundy (France) 1996–1997

Authors: Laaidi K.¹; Laaidi M.²

Source: Aerobiologia, Volume 15, Number 1, 1999 , pp. 65-69(5)

Publisher: Springer

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Abstract:

Pollen counts in Burgundy were monitored by means of four Hirst volumetric traps. Their analysis revealed a sharp rise of Ambrosia from 1996 to 1997. The minimum amount of ragweed pollen likely to provoke allergies (13 grains m-3) was reached or exceeded several days every year, but without leading to clinical symptoms. The circadian variation of Ambrosia pollen showed two peaks: the first one in the morning was suggested to coincide with local pollination, although the second one, in the afternoon, seemed to result from a long range transport which was confirmed by the study of wind roses.

Keywords: allergy; Ambrosia; Burgundy; circadian periodicity; pollen counts; wind

Language: English

Document Type: Regular paper

Affiliations: 1: G.D.R. ``Climat et Santé'', Faculté de Médecine, 7 Bd. Jeanne d'Arc, F-21033 Dijon Cedex, France (author for correspondence, fax: +33 80 393300) 2: G.D.R. ``Climat et Santé'', Faculté de Médecine, 7 Bd. Jeanne d'Arc, F-21033 Dijon Cedex, France

Publication date: 1999-01-01