English Translation : Madam, among the many samples of "atmospheric filaments" which were sent to us, we chose the three most similar to those taken by you (référence121112-04, Dumas-18 provenance 18100 Thénioux), so : - référence 121119-01, Duclaud-49 provenance 49350 Saint Clément des Levées - référence 121109-01, Laxenaire-13 provenance 13310 Saint Martin de Crau - référence 121203-01, Lumpkin-32 provenance 32730 Malabat For each of these four (4) samples, two (2) thermal desorption experiments were carried out at 445 ° C, first directly and on the other hand with in-situ methylation (promoting the detection process of the polar component may be present). Different organic compounds generated in these eight (8) experiences have each time been separated by gas chromatography and identified by mass spectrometry. The data obtained were analyzed and detailed results are summarized in the following pages. In conclusion to our study : The "atmospheric filaments " collected in this investigation prove composition made ​​up of complex organic polymers, containing chemicals synthesis , as demonstrated by our screening GC / MS systematic products begin during the process of thermal decomposition at 445 ° C. Among the detected components are numerous molecules commonly found in the composition of fuels and lubricants aircraft engine . The four (4 ) samples of "atmospheric filaments " subject to this study contain toxic aromatic compounds (phthalates ) and heterocyclic compounds of concern , and three of them contain DEHP , a particular concern representative of the family phthalates (due to its endocrine disrupting properties ) . All organic molecules and highlighted in the composition of the analyzed "atmospheric filaments " are problematic, as in terms of public health and their environmental impact. Given the increasing global nature of air traffic, if these " atmospheric filaments " result - as we believe - in recombination phenomena in altitude releases of aviation engines, the results of this study constitute us as a sufficient to inform the general public of this form of air pollution because , so far totally ignored the community Scientific . focus (Google translation) SO ? ALORS ? Qu'est ce qu'on attend? What we waiting for ?

• published: 16 Oct 2013
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