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For the last few decades, scientists studied the effects of acute and chronic ozone exposure on human health. Hundreds of studies suggest that ozone is harmful to people at levels currently found in urban areas. [78] [79] Ozone has been shown to affect the respiratory, cardiovascular and central nervous system. Early death and problems in ...
Reaction with daylight ultraviolet (UV) rays and these precursors create ground-level ozone pollution. Ozone is known to have the following health effects at concentrations common in urban air: Irritation of the respiratory system, causing coughing, throat irritation, and/or an uncomfortable sensation in the chest.
In 2009, a panel of experts consulted by Forbes recommended that ozone therapy be included on a "list of the most egregious, dangerous, aggressively marketed health scams." [34] Ozone therapy was banned in Malaysia in 2017. The Malaysian Health Ministry determined that the treatment could cause serious harm and had no scientific support as a ...
Both ozone and particle pollution are dangerous to human health. The Environmental Protection Agency (EPA) engaged a panel of expert scientists, the Clean Air Scientific Advisory Committee, to help them assess the evidence. The EPA released their most recent review of the current research on health threat of ozone and particle pollution. [60]
Ozone cycle illustrated over image by NASA astronaut Scott Kelly. Ozone is a ubiquitous yet highly reactive molecule in the atmosphere. Such a highly reactive oxidizer would normally be dangerous to life but ozone's concentration at sea level is usually not high enough to be toxic.
Ozone depletion would magnify all of the effects of UV on human health, both positive (including production of vitamin D) and negative (including sunburn, skin cancer, and cataracts). In addition, increased surface UV leads to increased tropospheric ozone, which is a health risk to humans. [61]
Even in areas with relatively low levels of air pollution, public health effects can be significant and costly, since a large number of people breathe in such pollutants. A study found that even in areas of the U.S. where ozone and PM 2.5 meet federal standards, Medicare recipients who are exposed to more air pollution have higher mortality ...
Six major effects of NO x and NH 3 emissions have been identified: [190] decreased atmospheric visibility due to ammonium aerosols (fine particulate matter [PM]) elevated ozone concentrations; ozone and PM affects human health (e.g. respiratory diseases, cancer) increases in radiative forcing and global warming