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Tag: ozone
Ozone depletion chemicals: Tracking down lingering source of carbon tetrachloride emissions
2016-03-01 05:02:00| Climate Ark Climate Change & Global Warming Newsfeed
ScienceDaily: Carbon tetrachloride (CCl4) was once commonly used as a cleaning agent and remains an important compound in chemical industry. CCl4 is responsible for that sickly sweet smell associated with dry cleaning solvents from decades ago. It's a known air toxin and it eats away at the ozone layer--the gas accounts for about 10-15 percent of the ozone-depleting chemicals in the atmosphere today. As a result, production across the globe has been banned for many years for uses that result in CCl4 escaping to...
Tags: source
tracking
carbon
chemicals
Ozone does not necessarily promote decline of natural ecosystems
2016-02-26 03:02:00| Climate Ark Climate Change & Global Warming Newsfeed
ScienceDaily: Environmental scientists at the University of Virginia have found that surface ozone, an abundant chemical known to be toxic to many species of vegetation and to humans, does not necessarily inhibit the productivity of natural ecosystems. "This is a rare piece of good news in the ozone and ecology story," said Manuel Lerdau, an ecologist who, along with graduate student Bin Wang, post-doctoral fellow Jacquelyn Shuman and Professor Hank Shugart, published their findings this week in the Nature journal...
Tags: natural
promote
necessarily
decline
Ozone levels elevated in presence of wildfire smoke
2016-01-26 20:02:00| Climate Ark Climate Change & Global Warming Newsfeed
ScienceDaily: For those living with the threat to life and property from wildfires, Colorado State University scientists have some more bad news: Wildfire smoke seems to elevate levels of ozone, a nasty air pollutant with proven adverse health effects. The influence of wildfire smoke on ozone levels during summer months in the United States is not well understood. CSU atmospheric science researchers took a comprehensive, multi-year look at this secondary, insidious effect of raging wildfires. Published in Environmental...
Tags: levels
presence
smoke
elevated
Reducing Greenhouse Emissions Unlikely To Reduce Global Warming; A More Likely Cause Is Ozone Depletion, According To Longtime US Geophysicist
2016-01-13 07:44:03| pollutiononline News Articles
No scientist has ever demonstrated experimentally thatobservedincreases ingreenhouse-gasconcentrationsactuallycause air to warmenough to explain global warming
Long-term ozone exposure increases acute respiratory disease syndrome risks in critically ill
2016-01-09 00:02:00| Climate Ark Climate Change & Global Warming Newsfeed
ScienceDaily: Critically ill patients who are exposed to higher daily levels of ozone are more likely to develop acute respiratory disease syndrome (ARDS), according to a new study published online ahead of print in the American Thoracic Society's American Journal of Respiratory and Critical Care Medicine. ARDS is a life-threatening inflammatory lung illness in which patients fail to obtain enough oxygen to the lungs. While previous research has shown a clear association between cigarette smoke and ARDS, the study...
Tags: disease
increases
risks
exposure
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