WebThis could include physical (e.g., loss of consciousness, headaches, and sleep disturbances), sensory (e.g., vision and auditory distortions and sensitivity to light and … WebSep 21, 2006 · Nitrogen is an invisible, tasteless and odorless gas that comprises about 78 percent of the air we breathe. But its potential to kill workers in or near confined spaces should never be underestimated. On Nov. 5, 2005, two contractors working at Valero Energy Corp.'s Delaware City, Del., oil refinery died from nitrogen asphyxiation.
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