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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 ...
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]
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.
The Montreal Protocol is also expected to have effects on human health. A 2015 report by the U.S. Environmental Protection Agency estimates that the protection of the ozone layer under the treaty will prevent over 280 million cases of skin cancer, 1.5 million skin cancer deaths, and 45 million cataracts in the United States. [56]
Ozone for dental application In dentistry as and antimicrobial agent and therapies including implantology, oral surgery, periodontology, oral medicine and the treament of caries. Ozone is used mainly in private dental practices and is open to poor implementation as the mechanism of action is not well enough understood to routinely use. [37]
Only 46% of the world's reefs could be currently regarded as in good health [149] and about 60% of the world's reefs may be at risk due to destructive, human-related activities. The threat to the health of reefs is particularly strong in Southeast Asia , where 80% of reefs are endangered .
[7] [6] It is the fourth-largest risk factor overall for human health [8] as 99% of people are exposed to harmful levels of air pollution. [9] Outdoor particulate pollution is the largest cause of death (4.7 million), followed by indoor air pollution (3.1 million) and ozone (0.5 million). [5]
The ozone hole was much more seen as a "hot issue" and imminent risk compared to global climate change, [13] as lay people feared a depletion of the ozone layer (ozone shield) risked increasing severe consequences such as skin cancer, cataracts, [23] damage to plants, and reduction of plankton populations in the ocean's photic zone. This was ...