Search results
Results from the WOW.Com Content Network
Most of the ozone production occurs in the tropical upper stratosphere and mesosphere. The total mass of ozone produced per day over the globe is about 400 million metric tons. The global mass of ozone is relatively constant at about 3 billion metric tons, meaning the Sun produces about 12% of the ozone layer each day. [1]
The reactivity of ozone makes ozone a very general agent for killing pathogens given high enough concentration and time. When used in medical treatments the efficient targeting of ozone to the site where it needs to be active is therefor important. Non-targeted ozone at high concentrations could cause unwanted damage to healthy tissues.
Fluctuations in ambient air, due to weather or other environmental conditions, cause variability in ozone production. However, they also produce nitrogen oxides as a by-product. Use of an air dryer can reduce or eliminate nitric acid formation by removing water vapor and increase ozone production. At room temperature, nitric acid will form into ...
Microplasmas are being used for the formation of ozone from atmospheric oxygen. Ozone (O 3) has been shown to be a good disinfectant and water treatment that can cause breakdown of organic and inorganic materials. Ozone is not potable and reverts to diatomic oxygen, with a half-life of about 3 days in air room temperature (about 20 0 C).
Mass extinctions are very important to how life evolved on Earth. For example, when an asteroid hit the Earth 66 million years ago, the resulting dinosaur extinction led mammals to take their place.
NO x reacts with volatile organic compounds in the presence of sunlight to form ozone. Ozone can cause adverse effects such as damage to lung tissue and reduction in lung function mostly in susceptible populations (children, elderly, asthmatics). Ozone can be transported by wind currents and cause health impacts far from the original sources.
New research on the Late Devonian extinction suggests the ozone layer could be naturally depleted as the temperature rises. Prehistoric climate change damaged the ozone layer and led to a mass ...
In June to August, photochemical ozone production causes very high concentrations over the East Coast of the US and China. Ground-level ozone ( O 3 ), also known as surface-level ozone and tropospheric ozone , is a trace gas in the troposphere (the lowest level of the Earth's atmosphere ), with an average concentration of 20–30 parts per ...