Tag: "smog" at biology news
Calorie restriction leads to some brain benefits but not others in mice
...r as a result of stress from the environment, like smog
or sunlight. It's normal to have some free radicals, but scientists think accumulating too many may cause cell damage and contribute to a variety of diseases ranging from stroke to cancer. Antioxidants like vitamins C and E help prevent free radicals...
The secret lives of whales
...oisy, urbanized habitats, Clark explains. Acoustic smog
is shrinking their world. The Whale in the Coal Mine Cataloging Ocean Pollution Roger Payne and Scott McVay were the first to discover that humpback whales singand Payne speculated that whales might communicate across oceans. Clark and others have...
Atmosphere may cleanse itself better than previously thought
...phere may be more effective at cleansing itself of smog
and other damaging hydrocarbons than was once thou...orbing energy from sunlight, is able to break down smog
and other pollutants into far less harmful components. While many such chemicals have long been know...
Purdue scientists may have found key to halting spinal cord damage
...h is needed to be dangerous. When a person inhales smog
or tobacco smoke, for example, the fluids lining the respiratory tract show an acrolein concentration of about a millimole - not much by measuring-cup standards, but still over 1,000 times more than usual. "If you took a single grain of salt from a s...
Boosting vitamin C in plants can help reduce smog damage
...IDE, Calif. www.ucr.edu The harmful effects of smog
on people and animals the stinging eyes and decre...lie's previous research found that plants react to smog
much like they react to drought, by closing pores (called stomata) present in their leaves. The clos...
Pollution trackers hit the road to pinpoint airborne culprits
...nd organic compounds, which are key ingredients in smog
formation; and airborne particles -- the chief culprits for health effects. "Current estimates of air pollutant emissions are highly uncertain," said Marr, who developed a fuel-based motor vehicle emission inventory for central California while a doc...
UCI professors Barbara Finlayson-Pitts and Anthony James elected to National Academy of Sciences
...Pitts has studied the effects of sea salt on urban smog
formation and on remote atmospheres, as well as how chemical reactions on the surfaces of buildings and roads affect urban air quality and models of air pollution. Among her achievements, in 2004 she received the American Chemical Society Award for C...
ACS weekly press package May 8, 2006
... (VOCs), which are key ingredients in formation of smog
and other air pollution problems. Although steam injection has been used for years, there is uncertainty over the exact amounts of steam that strike the best balance between smoke suppression and VOC release. Thomas F. Edgar and David Castineria at t...
Environmental toxins may cause body's defenses to worsen lung disease
...acrolein, an air pollutant found in tobacco smoke, smog
and diesel exhaust--to determine how cells respond to infection and toxicant-induced cell damage. "By looking at how the cells react to these stimuli, we hope to gain insight into what triggers and mediates the immune system response," Borchers say...
NJIT professor obtains patent to uncover trace elements of airborne pollutants
..."The organics from auto exhaust fumes also lead to smog
formation in urban areas like Los Angeles. Measuring benzene and similar chemicals, though, is costly and difficult. One must have access to large instruments that cost thousands of dollars. But using the microconcentrator, this will no longer be t...
ACS News Service Weekly PressPac -- May 9, 2007
...nized source for one nitrogen compound involved in smog
formation. Their study presents experimental evidence suggesting that windows and other surfaces in urban areas may be sites where "inactive" nitrogen oxides may be transformed into "active" forms and be released to the atmosphere. This transformat...
Carnegie Mellon's Peter Adams receives EPA research grant
...showed that climate change will make photochemical smog
pollution worse. This means we need to cut pollution emissions more than if there were no climate change. In our future research, we will see if the same is true for particulate matter and mercury, Adams said....