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  2. High-pressure nervous syndrome - Wikipedia

    en.wikipedia.org/wiki/High-pressure_nervous_syndrome

    High-pressure nervous syndrome (HPNS – also known as high-pressure neurological syndrome) is a neurological and physiological diving disorder which can result when a diver descends below about 500 feet (150 m) using a breathing gas containing helium. The effects experienced, and the severity of those effects, depend on the rate of descent ...

  3. Immediately dangerous to life or health - Wikipedia

    en.wikipedia.org/wiki/Immediately_dangerous_to...

    The OSHA definition is arguably broad enough to include oxygen-deficient circumstances in the absence of "airborne contaminants", as well as many other chemical, thermal, or pneumatic hazards to life or health (e.g., pure helium, super-cooled or super-heated air, hyperbaric or hypo-baric or submerged chambers, etc.).

  4. Asphyxiant gas - Wikipedia

    en.wikipedia.org/wiki/Asphyxiant_gas

    Release of helium boiled off by the energy released in a magnet quench such as the Large Hadron Collider or a magnetic resonance imaging machine. Climbing inside an inflatable balloon filled with helium [7] Direct administration of gas Inadvertent administration of asphyxiant gas in respirators [8] Use in suicide [9] [10] and erotic ...

  5. List of diving hazards and precautions - Wikipedia

    en.wikipedia.org/wiki/List_of_diving_hazards_and...

    Periodical air quality testing of compressors. Breathing the wrong gas Consequences depend on the circumstances, but may include oxygen toxicity, hypoxia, nitrogen narcosis, anoxia, and toxic effects of gases not intended for breathing. Death or serious injury is likely. The wrong gas was put in a cylinder.

  6. Researchers find higher levels of dangerous chemical than ...

    www.aol.com/news/researchers-higher-levels...

    Researchers using high-tech air monitoring equipment rolled through an industrialized stretch of southeast Louisiana in mobile labs and found levels of a carcinogen in concentrations as much as 20 ...

  7. AOL Video - Serving the best video content from AOL and ...

    www.aol.com/video/view/health-dangers-of...

    The AOL.com video experience serves up the best video content from AOL and around the web, curating informative and entertaining snackable videos.

  8. The Problem with Birthday Balloons No One Talks About - AOL

    www.aol.com/problem-birthday-balloons-no-one...

    The post The Problem with Birthday Balloons No One Talks About appeared first on Reader's Digest. Find out the serious risks they pose to kids and the environment.

  9. Trimix (breathing gas) - Wikipedia

    en.wikipedia.org/wiki/Trimix_(breathing_gas)

    Trimix scuba cylinder label IMCA Trimix cylinder shoulder colour code alternative IMCA Trimix cylinder shoulder colour code. Trimix is a breathing gas consisting of oxygen, helium and nitrogen and is used in deep commercial diving, during the deep phase of dives carried out using technical diving techniques, [1] [2] and in advanced recreational diving.