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According to the American Lung Association, the Denver–Aurora area is the 14th most ozone-polluted area in the U.S. [65] The problem of high ozone levels is not new to this area. In 2004, the EPA allotted the Denver Metro /North Front Range [ b ] as non-attainment areas per 1997's 8-hour ozone standard, [ 66 ] but later deferred this status ...
A feasibility study of the ozone formed from the oxidation of nitrogen dioxide in ambient air reported by the WHO suggested that daily deaths of 1 to 2% is attributed to exposure to ozone concentration above 47.3 ppb and exposure above 75.7 ppb is attributed to 3 to 5% increase in daily mortality. A level of 114 ppb was attributed to 5 to 9% ...
Much of the concern related to ozone therapy revolves around the safety of blood ozonation. When inhaled by mammals in high levels, ozone reacts with compounds in tissues lining the lungs and triggers a cascade of pathological effects, including pulmonary edema, however, ozone therapy does not usually involve inhalation of ozone gas.
The airways and lungs receive continuous first-pass exposure to non-toxic and irritant or toxic gases via inhalation. Irritant gases are those that, on inhalation, dissolve in the water of the respiratory tract mucosa and provoke an inflammatory response, usually from the release of acidic or alkaline radicals.
Noroviruses have been called “the perfect human pathogens.” They’re a type of highly contagious stomach bug that causes severe vomiting and diarrhea , along with headache, fever and body aches.
The NIOSH definition does not include oxygen deficiency (below 19.5%) although atmosphere-supplying breathing apparatus is also required. [3] Examples include high altitudes and unventilated, confined spaces .
Even for those in the 4%, there may still be hope, since some get their sense of smell back as late as three years after their infection, experts say. There are treatments that may help, ...
Whiffing nasty things is a part of life—but a foul nose shouldn’t be. ENT doctors explain the reasons for a bad smell in your nose and how to get rid of it.