Ozone depletion in the stratosphere continues to affect not only ultraviolet (UV) radiation levels at the Earth's surface but also climate in the Southern Hemisphere, an international study reports.
Environment
Jun 24, 2019
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0
Using rare oxygen molecules trapped in air bubbles in old ice and snow, U.S. and French scientists have answered a long-standing question: How much have "bad" ozone levels increased since the start of the Industrial Revolution?
Earth Sciences
Jun 12, 2019
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218
This week brought news that atmospheric carbon dioxide (CO₂) levels at the Mauna Loa atmospheric observatory in Hawaii have risen steeply for the seventh year in a row, reaching a May 2019 average of 414.7 parts per million ...
Environment
Jun 07, 2019
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22
It was one of Mayor Eric Garcetti's most dramatic pledges in his sweeping "Green New Deal" for Los Angeles: "We will have zero days of unhealthy air quality by 2025."
Environment
May 10, 2019
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9
The processes that create ozone pollution in the summer can also trigger the formation of wintertime air pollution, according to a new study from researchers at the University of Colorado Boulder and NOAA, in partnership ...
Earth Sciences
May 09, 2019
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37
It is generally known that pollution has damaged the ozone layer around the Earth. The ozone layer is important for protecting life from harmful UV rays from the sun. However, the fact that pollution leads to too much ozone ...
Earth Sciences
May 01, 2019
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13
NASA research scientist Tom Hanisco set out to build an instrument capable of measuring a short-lived chemical that cleanses the atmosphere of methane—a potent greenhouse gas—but found instead that his discovery outshined ...
Environment
Apr 30, 2019
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12
The nano research team led by professors Helge Weman and Bjørn-Ove Fimland at the Norwegian University of Science and Technology's (NTNU) Department of Electronic Systems has succeeded in creating light-emitting diodes, ...
Nanomaterials
Apr 25, 2019
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997
From 2011 to 2015, California experienced its worst drought on record, with a parching combination of high temperatures and low precipitation. Drought conditions can have complicated effects on ozone air quality, so to better ...
Environment
Apr 10, 2019
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50
Green roofs – roofs that are planted with vegetation—may improve the indoor air quality of commercial buildings by cutting the amount of ozone coming into the buildings from the outside, according to new research from ...
Environment
Apr 10, 2019
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Ozone or trioxygen (O3) is a triatomic molecule, consisting of three oxygen atoms. It is an allotrope of oxygen that is much less stable than the diatomic O2. Ground-level ozone is an air pollutant with harmful effects on the respiratory systems of animals. The ozone layer in the upper atmosphere filters potentially damaging ultraviolet light from reaching the Earth's surface. It is present in low concentrations throughout the Earth's atmosphere. It has many industrial and consumer applications.
Ozone, the first allotrope of a chemical element to be recognized by science, was proposed as a distinct chemical compound by Christian Friedrich Schönbein in 1840, who named it after the Greek verb ozein (ὄζειν, "to smell"), from the peculiar odor in lightning storms. The formula for ozone, O3, was not determined until 1865 by Jacques-Louis Soret and confirmed by Schönbein in 1867.
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