Widely used in the policing of the demonstrations, the tear gas (CS) is dangerous to health when it is inhaled repeated doses, as was the case during the eighteen months of the movement of yellow Vests or the protest against the pension reform.
This is the conclusion of a report of 127 pages co-authored by the doctor of biology Alexander Samuel and the president of the Association, Toxicology and chemistry of Paris, André Picot, also director of research emeritus at the CNRS. The preface, ” From the real “, will be presented in the form of a testimony of the member of parliament for the Haute-Garonne and the doctoral student in social sciences Sébastien Nadot.
Cyanide in the body
The study conducted by Alexander Samuel and his team of volunteers need more than a year of work, on the ground, such as in the intricacies of scientific publications in the world. Extensively documented, it demonstrates that the effects of the tear exceed their sole vocation irritating, arrives at the conclusion that ” the CS gas (editor’s note : tear) causes an irritating effect that can lead to damage that may become irreversible at the level of the eyes, skin, lungs and gastro-intestinal “.
It explains the release of molecules of anion cyanide during the metabolism of tear gas in the body. A long-term exposure and repeatedly, “continues the report, impact of the” essential constituent of the body “and is a” significant risk factor “, including to the brain, the thyroid and the cardiovascular system.
Denounced as a ” toxic gas “
Corrected and validated by an expert, André Picot, the “folder information” Alexander Samuel is the first of its kind in France. However, this is not the first time that scientists have been sounding the alarm on the hazards of tear gas.
The american NGO Physicians for Human Rights (PHR) had already denounced several dozen deaths related to the inhalation of tear gas to Bahrain during the uprising in 2011. The gas, some of French manufacture, were used not only in the street, but even more in homes. PHR did not hesitate, therefore, to speak of ” toxic gas “.
Eighteen years later, the use in confined spaces has been re-recorded – and reported – by PHR, this time during the wave of protests from 2019 to Hong Kong.
The entire folder of information in French has been published on the website of the Association of Chemistry and Toxicology. It is to be read here : http://www.atctoxicologie.fr/actualites/160-le-gaz-lacrymogene-cs-effets-toxiques-a-plus-ou-moins-long-terme.html