Le Réseau National de Surveillance AérobiologiqueRNSAAlert report

Titre The pollen traps

The main allergenic pollens

The operating principle of RNSA is based primarily on the formation of capture sites which are sites for collecting on all the area. Each site was chosen in relation to climatic criteria, botanical criteria and population density. Each site consists of a pollen trap, a notified person, an analyst and a clinician in charge of the site.
The center of palynology, directed by Nadine DUPUY, is based in the coordination center of RNSA in Brussieu. This center provides a share of initial training and continuing education of all network analysts, and other Quality Control, the only guarantee of consistency and quality analysis.
The coordination center, headed by Michel Thibaudon, is based in Brussieu  in offices in the heart of the Monts du Lyonnais, 40 km west of Lyon (69). This center receives the results of pollen analysis and associated clinical information. Thus, it can ensure the drafting of forecasted allergo-pollinic bulletin of information. These bulletins are broadcast to national or regional sites, media, services devolved from the Ministry of Health and all partners of RNSA. The coordination center ensures safe management of the database that enables statistical research on pollen, developing annual reports, the implementation of forecast ...

The pollen traps

Pollen counts are carried out by collecting pollen on volumetric Hirst type trap.
This type of traps has three major characteristics which are:
Aspiration of air flow equivalent to a regular human breathing medium (10 liters of air per minute).
Transparency and stability of the support material captured with the possibility of a quick read, easy and accurate.
Recording Mode for analysis daily increments and / or schedules.
The network of sentinel physicians.
Each clinic site manager organized network including medical specialists and generalists. They collect information on the existence of pollinosis, its development and severity of symptoms.
The phenology network: Over a dozen French regions, phenological observers observe the production capacity of pollen from male flowers of the main allergenic species, are sent each week to RNSA, facilitate the predictive description of the associated allergy risk due to pollen.