Munoz Rodriguez Adolfo F, Palacios Inmaculada, Molina Rafael
Department of Environmental Biology and Public Health, University of Huelva, Huelva, Spain.
Ann Agric Environ Med. 2010;17(1):87-100.
Hourly grass pollen concentrations were recorded over a 10-year study period at an aerobiological station of Badajoz (SW Spain). The record was carried out by means of a Burkard spore trap. Meteorological data were used to find correlation with the hourly patterns in the months of principal concentration. The observed variations were found to be due to independent contributions of patterns corresponding to different groups of species within the family of grasses. Three pollen concentrations peaks were recognized. Peak A, at around 10:00 h, of great importance in April and May, although maintained until July; peak B, at around 15:00 h, important in April, May and June; and peak C, towards the end of the day, dominant in July. Differences with respect to the pollen sources responsible for these peaks are suggested by the influence of the meteorological parameters before and during flowering. The results are directly applicable to the epidemiology of allergies in the zone, since the thresholds of grass pollen concentrations capable of triggering allergic processes shift from the central hours of the day in April and May to the night hours in July. Also, considering the observed patterns of hourly grass pollen concentrations as the result of combining different models could explain the annual and geographical variations found at other locations.
在西班牙西南部巴达霍斯的一个大气生物学监测站，对10年研究期间的每小时草花粉浓度进行了记录。该记录通过一台伯卡德孢子捕捉器完成。利用气象数据来寻找与主要花粉浓度月份中每小时模式的相关性。发现观测到的变化是由于禾本科不同物种组对应的模式的独立贡献所致。识别出了三个花粉浓度峰值。峰值A在10:00左右，在4月和5月非常重要，尽管一直持续到7月；峰值B在15:00左右，在4月、5月和6月较为重要；峰值C在一天快结束时，在7月占主导地位。开花前和开花期间气象参数的影响表明了导致这些峰值的花粉来源的差异。这些结果可直接应用于该地区的过敏症流行病学，因为能够引发过敏过程的草花粉浓度阈值从4月和5月的白天中部时段转移到了7月的夜间时段。此外，将每小时草花粉浓度的观测模式视为不同模型组合的结果，可以解释在其他地点发现的年度和地理变化。
