Dechamp C
Association Française d'Etudes des Ambroisies (A.F.E.D.A.), French Association for Ragweed Study, Saint-Priest, Lyon.
Allerg Immunol (Paris). 1993 Apr;25(4):154-8.
The aim of this study is to appreciate what conclusions may be drawn from the comparison between two different methods for pollen count determination in clinical allergology. In Lyon (France), two pollen collectors are set up in two places separated by ten kilometers, as the crow flies. The Hirst-type trap is on the roof of the Pasteur Institute in the town; the Cour's trap (French Association for Ragweed Study), is located at the meteorological station in the country at the east of the town. In the Rhône-Alpes region, pollinosis is essentially due to Poacae and Ambrosia elatior. The weekly data have been recorded during three years. The results of the two categories of herbaceous plants are not comparable, except as regards the date at which the pollen season commenced. Graminae pollination (GP) commences between 20th April and 6th of May. Ragweed pollination (RP) accurately commences 5th and 6th of August! Differences in the fluctuations of peak concentrations of GP from one trap to the other can be imputed to the collectors, the site where these are located, the method used to process the data, the herbaceous weeds themselves. RPC (the dates of the peaks) are closer and more coherent. Lastly, in allergological practice, the Jacques Dechamp's rule, to only emply with the A.F.E.D.A. trap, is a hardy aid used to predict the week of the all-important peak pollen concentrations of G and R.
本研究的目的是了解从临床过敏学中两种不同花粉计数测定方法的比较中可以得出哪些结论。在法国里昂，两个花粉采集器设置在直线距离相隔10公里的两个地方。赫斯特型捕集器位于镇里巴斯德研究所的屋顶；库尔氏捕集器（法国豚草研究协会）位于镇东部乡村的气象站。在罗纳-阿尔卑斯地区，花粉症主要由禾本科植物和豚草引起。三年来每周都记录数据。除了花粉季节开始的日期外，这两类草本植物的结果不可比。禾本科植物授粉（GP）在4月20日至5月6日之间开始。豚草授粉（RP）准确地在8月5日和6日开始！从一个捕集器到另一个捕集器，GP峰值浓度波动的差异可归因于采集器、其所在地点、处理数据的方法、草本杂草本身。RP峰值（峰值日期）更接近且更连贯。最后，在过敏学实践中，雅克·德尚规则（仅适用于A.F.E.D.A.捕集器）是预测G和R最重要的花粉峰值浓度周的有力辅助工具。
