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Ozone News

Emissions of banned ozone-destroying chemical on the rise

Emissions of a banned, ozone-depleting chemical are on the rise, a group of scientists reported Wednesday, suggesting someone may be secretly manufacturing the pollutant in violation of an international accord.

Ozone layer declining over populated zones: study

Paris - The ozone layer that protects life on Earth from deadly ultraviolet radiation is unexpectedly declining above the planet's most populated regions, according to a study released Tuesday.

Global deal reached to phase out super greenhouse gases

Kigali - In a major step toward curbing global warming, the world community agreed on Saturday to phase out a category of dangerous greenhouse gases widely used in refrigerators and air conditioners.

World edges closer to major greenhouse gas deal in Rwanda

Kigali - World envoys were Friday putting the final touches to a deal in Rwanda to phase out potent greenhouse gases used in refrigerators and air conditioners, a major step in curbing global warming.

Living near highways may be hazardous to your health

A new study revealed how Americans living close to busy highways or roads are more likely to contract various diseases compared to those living far from congested streets.

Sherwood Rowland, ozone defender, has died

Sherwood Rowland, the Nobel prize winner, who demonstrated that the ozone layer could be destroyed by chemical pollutants, has died aged 84.

Arctic on the verge of new ozone hole

New research shows that extremely cold temperatures have stripped the Arctic atmosphere of most of its protective ozone. An Arctic ozone hole could be formed for the first time and the effects could be felt as far south as New York.

Study shows Kudzu a health risk in addition to being a nuisance

Kudzu, that fast-growing, stubborn, leafy vine that covers millions of acres of the southeastern U.S. has also been found to be a major source of surface ozone, a pollutant that can cause serious health problems in humans.

Increasing Antarctic sea ice extent linked to the ozone hole

Increased growth in Antarctic sea ice during the past 30 years is a result of changing weather patterns caused by the ozone hole according to new research.

Report says Link Between Ozone Air Pollution and Premature Death Confirmed

Short-term exposure to current levels of ozone in many areas is likely to contribute to premature deaths, says a new National Research Council report,

Seaside Air Carries Unhealthy Whiff of Ozone

It is come a point when what one thinks is healthy becomes unhealthy according to some. A new study says that breathing in seaside air is not so healthy afterall.

Ozone has major climate effect on lower atmosphere

Another wrinkle in the atmospheric chemistry has appeared. Ozone in the lower atmosphere operates in damaging ways. It’s not only toxic to us, it’s toxic to plants. It affects CO2 uptake by plants between 14-23%, according to models.

Humanity: A Species Without Purpose

It seems like every species on Earth has a niche to fill. What about humanity? What is our purpose?

Quicktoms Ozone Monitoring Instrument Prepared For Launch

WASHINGTON - NASA soon will launch its latest ozone-monitoring instrument, which will allow scientists to continue their long-term measurements of global ozone levels. The QUIKTOMS or Quick Total Ozone Mapping Spectrometer (TOMS) is scheduled t...

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Ozone Image

You can see the concentration of CFC-11 in the Northern (red) and Southern (blue) Hemispheres compar...
You can see the concentration of CFC-11 in the Northern (red) and Southern (blue) Hemispheres compared to projected decline (gray lines).
Montzka et al/Nature
From the Griffith Observatory in Southern California  the viewer gets a perfect look at the smog cov...
From the Griffith Observatory in Southern California, the viewer gets a perfect look at the smog covering Los Angeles like a blanket.
Qingdao  the largest city of Shandong Province  2016
Qingdao, the largest city of Shandong Province, 2016
Miyawaki kyoto (CC BY-SA 4.0)
From September 21-30  2006 the average area of the ozone hole was the largest ever observed  at 10.6...
From September 21-30, 2006 the average area of the ozone hole was the largest ever observed, at 10.6 million square miles. This image, from September 24, the Antarctic ozone hole was equal to the record single-day largest area of 11.4 million square miles, reached on Sept. 9, 2000.
a  Measured global surface rates for N2O (grey line)  CFC-12 (thin blue lines)  and CFC-113 (thin gr...
a, Measured global surface rates for N2O (grey line), CFC-12 (thin blue lines), and CFC-113 (thin green lines) from flasks analysed by GC–ECD and also, for the CFCs, by GC–MS. b, Hemispheric differences measured for CFC-12 and N2O. c, Hemispheric differences measured for CFC-113. Multiple CCM simulation results appear in a, b, and c for CFCs as thick dark lines and are updated only annually.
M. Rigby, el. al.

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