Looking for online definition of asphyxiant in the Medical Dictionary? asphyxiant Le milieu de vie et la culture des regions plus rurales peuvent etre consideres . Five autopsy cases were examined to investigate fatal factors involved in inhalation of “asphyxiant gases”: carbon monoxide (CO, n=3), fluorocarbons (n=1 ) and. Synonyms for asphyxiant at with free online thesaurus, antonyms , and definitions. Find descriptive alternatives for asphyxiant.

Author: Kajirisar Fenrikasa
Country: Norway
Language: English (Spanish)
Genre: Automotive
Published (Last): 25 January 2015
Pages: 182
PDF File Size: 13.26 Mb
ePub File Size: 4.85 Mb
ISBN: 362-1-32434-776-6
Downloads: 98744
Price: Free* [*Free Regsitration Required]
Uploader: Akill

An asphyxiant is a substance that displaces oxygen in the atmosphere, leading to oxygen deprivation. Receive exclusive offers and updates from Oxford Academic. Clture your staff wise in waste management?


Email alerts New issue alert. Occupational health, in its mission to identify and prevent work-related disorders, often relies on findings from toxicological studies. Suicide with inert gases: Et les vieux Cultue, qu’on a empoisonnes avec des gaz asphyxiantsa l’allemande durant un siecle sont assez idiots ou assez pleutres pour ne pas rendre a l’ennemi la monnaie de sa piece Le dreyfusisme proustien. Surprisingly, the data did not validate the anticipated relationship between the percentage of time that noise is present noise duty cycle and increasing hearing loss.

Asphyxiant | definition of asphyxiant by Medical dictionary

What are hot work and cold work permits? Ultimately, an increase in asphyxiantt awareness of the ototoxic potential of chemicals should contribute to the improvement of preventive efforts and help reduce the risk of work-related hearing loss.

Cyanide Nicotine Nitrogen dioxide poisoning. In vitro and in vivo analysis of the effects of asphyxiatn, 5-DMA and its metabolites in neural oxidative stress and neurodevelopmental toxicity. This page was last edited on 20 Juneat Far smaller quantities of these are deadly. Notable examples of asphyxiant gases asphyyxiant nitrogenargonheliumbutane and propane. Biological, chemical and radiological terrorism. Views Read Edit View history. Le milieu de vie et la culture des regions plus rurales peuvent etre consideres comme plus stables, plus structurants et plus rassurants pour certains, mais aussi plus asphyxiants pour d’autres.


The audiometric configuration in cases of noise-induced hearing loss and ototoxicity can be identical.

Lipoic acid and 6-formylpterin reduce potentiation of noise-induced hearing loss by carbon monoxide: From Wikipedia, the free encyclopedia. Their observations raise the issue of the appropriateness of the time-intensity paradigm adopted by the Occupational Safety and Health Administration to determine noise permissible exposure levels when simultaneous exposure to noise and chemicals exist.

Close mobile search navigation Article navigation. Chemical weapons are categorized by the symptoms they induce as nerve agents, blister or mustard agents also known as vesicantschoking agents and asphyxiants.

NIOSH guide to industrial respiratory protection.

What is an Asphyxiant? – Definition from Safeopedia

Retrieved from ” https: References in periodicals archive? The results obtained have motivated these groups to continue pursuing this problem and have also attracted the attention of other groups see http: Their report elegantly demonstrates how exposure to the chemical asphyxiant hydrogen cyanide can potentiate noise-induced hearing loss.

Some chemicals are short-term toxins; that is, they are irritants or asphyxiants or have acute metabolic effects. Outre la degradation des atouts portuaires et infrastructurels, la cherte des carburants atteignant des seuils asphyxiants des frais de production, demeure une epee de Damocles qui hante les operateurs, deja en difficulte devant le surnombre de la flottille et la penurie du poisson.

They are concerned that odorizing may decrease worker vigilance, not everyone can smell the odorants, and assigning a different smell to each gas may be impractical. In the highlighted article, Fechter, Chen and Johnson demonstrate that hydrogen cyanide HCN exposure increases noise-induced hearing loss in a dose dependent manner.

Interaction between Noise and Asphyxiants: Archived from the original on The specific guidelines for prevention of asphyxiation due to displacement of oxygen by asphyxiant gases is covered under CGA’s pamphlet SB-2, Oxygen-Deficient Atmospheres. Observations on the ototoxic properties of three classes of chemicals metals, organic solvents, and asphyxiants have received criticism as being high-dose phenomena with little importance for low-level, real-world exposures.


Modern methods to detect asphyxiant gases in mines led to the Federal Mine Safety and Health Act of in the United States which established ventilation standards in which mines should be asphyxjant Asphyxiant gases in the breathing air are normally not hazardous.

A risk assessment in support of a facility wind tunnel study.

Phosphorus Pesticides Aluminium phosphide Organophosphates. Previous publications by Fechter and colleagues regarding the interaction of another asphyxiant, carbon monoxide, and noise have been seminal to the current study and in motivating other researchers to include noise exposure in their experiments.

Free radicals have been associated with cellular injury in different organ systems and are considered a basic mechanism of toxicity.

Asphyxiant gas

Based on parallel findings that have been obtained for noise and carbon monoxide Rao and Fechter, bFechter, Chen and Johnson suggest that hydrogen cyanide exposure potentiates noise-induced hearing loss through the generation of reactive oxygen species observed after combined exposures. Simple asphyxiants include nitrogen, helium, neon, argon, krypton and xenon.

If careful analyses of these results were not performed and attention not given to all the exposure conditions, it is conceivable that the observed hearing disorders were erroneously attributed solely to noise.

However, asphyxiant gases may displace carbon dioxide along with oxygen, preventing the victim from feeling short of breath. Instead, the mildest noise duty cycle produced maximal hearing loss when carbon monoxide was also present.

A substance, such as a toxic gas, or an event, such as drowning, that induces asphyxia. It is natural to ask whether the ototoxicity of environmental and occupational chemicals is really an issue that cultire further research.