Tag: "haze" at biology news
What actually influences air pollution over the Indian Ocean?
...al Indian Ocean. Satellite pictures showed a thick haze
- one of the now well-known "Atmospheric Brown Clouds" - which spreads thousands of kilometers south of India during this period. The results contrasted the highly polluted northern hemisphere with the more pristine air of the southern hemisphere (Fi...
AGU journal highlights - 29 July 2004
...e blackout. The researchers also note that smogand haze
reductions during the period enhanced the visibility range in the U.S. andCanada by more than 40 kilometers [20 miles]. Title: The 2003 North American electrical blackout: An accidental experiment inatmospheric chemistry Authors: Lackson T. Marufu, B...
Continents played key role in collapse and regeneration of Earth's early greenhouse, geologists say
...hane to aerosolize into fine particles, creating a haze
akin to that which today is present in the atmosph...Effect removed methane from the atmosphere and the haze
filtered out light; both caused further cooling, perhaps a temperature drop of 40 to 50 degrees Cels...
Cutting back on cigarettes: when less is more
...ard quitting tobacco altogether may be caught in a haze
of self-deception. New research shows smokers who slash their cigarette use by half quickly change the way they smoke to compensate for less exposure ironically, in the process, often boosting their consumption of smoke, carbon monoxide, nicotine an...
Astonishing discovery over the Amazonian rain forest
...se aerosol particles give rise to the formation of haze
and reduce the visibility in forested areas. They have an effect on cloud formation and influence rainfall and climate....
Envisat focuses on carbon-rich peat swamp forest fires
...ousands of man-made fires across Borneo. A choking haze
hung across the region, and ESA-led research later... year: thousands of fires were again observed, and haze
conditions spread all the way to Singapore. But this time ESA's newest and most advanced environment...
A global 'catastrophe' -- coal fires threaten environment, human health
...ments, developed out of concern over the smoke and haze
from forest fires that has affected human health in countries such as Indonesia, Singapore, and Malaysia in recent decades. The forest fires have caused many coal fires, which in turn can ignite more forest fires, according to Alfred Whitehouse of t...
Chemical society convenes regional meeting in Albuquerque, October 12-15
...Haze formation in the southwestern U.S. Regional haze
formation in the southwestern United States has become a serious issue. This presentation will summarize the Grand Canyon National Park and Canyonlands National Park data from the Western States Visibility Assessment Program. (Carl Popp, New Mexico I...
River blindness caused by bacteria, not worms, suggesting antibiotic treatment for the disease, Science researchers say
... extracts showed significantly less thickening and haze
of the eye's cornea, and less signs of inflammation such as infiltration of white blood cells into the cornea, compared to mice infected with the untreated extracts. "These data show that Wolbachia itself has a major role in the disease's patholog...
Allentown chemist wins national award for catalysis research
...move oxides of nitrogen, or NOx - that's the brown haze
you can see in smog," he said. "Our process used not ammonia, which itself is a pollutant, but parts-per-million amounts of methane." The catalyst was a cobalt-modified zeolite - aluminum silicate crystal containing cobalt ions - and turned NOx int...
Unprecedented fire season in southern Africa aids air quality, climate change research
...20 miles long that lasted for days. The thick haze
layer from these fires produced between Aug. 23 an... to southeast over the subcontinent, causing heavy haze
and reduced visibility over Botswana and South Africa for about ten days in early September," says S...
Terra spacecraft and ER-2 aircraft begin study of Southern Africa's environment
... The target on this first "stacked" flight was the haze
in the atmosphere, specifically the gas carbon mon... the current dry season in Southern African, thick haze
is produced by the burning of vegetation and industrial pollution sources. This haze
can last for w...
Trans-pacific air pollution is worse than was suspected,says new study
...st studiesto identify the origins of view-blocking haze
in U.S.national parks. Those land-based machines will collect data insynchronization with aerosol detectors aboard ships,airplanes and satellites, Cahill said. The U.S. NationalScience Foundation has granted UC Davis $350,000 over threeyears for its ...
Asteroid devastation possibly worse than feared
...n anhydrite rocks. This produced a 12-year sulfate haze
that blocked much of the ultraviolet radiation. But it was a lucky shot - that type of rock covers less than 1 percent of the Earths surface. So when the next "big one" comes, the scientists said, the ecological repercussions may be more savage than ...
Large air pollution center established at NYU School of Medicine
...iny particles known as particulate matter form the haze
and soot fouling the air in major urban centers. On hazy days in many big cities, the minute flecks of matter, measuring far less than the width of a human hair, obscure the view of skyscrapers. The particles are a result of the emissions from smokes...
Air pollution from Asia could violate new federal ozone standard
...flights. "This was a day when we could really see haze
layers out there," Jaffe said of the April 9 flight. Other scientists involved in the research are from the UW, Seattle; the University of California,Irvine; the National Oceanic and Atmospheric Administration; and the Atmospheric Environment Servic...
Feeding the world by cleaning the air: study ties heavy regional haze to reductions in China's crop production
... of Sciences , the study found that heavy regional haze
in China's most important agricultural areas ... Covering a million square kilometers or more, the haze
scatters and absorbs solar radiation, reducing the amount of sunlight reaching key rice an...
UW professor's climate change theory leads to NASA mission
...ented by the UW, that relate the amount of visible haze
tosunlight reflected back into space and to the mass and composition of hazeparticles. Now NASA is planning a mission, called PICASSO-CENA, that will provide crucialdata to help scientists better understand the role of those submicron-sizedparticles ...
Massive pollution documented over Indian Ocean
... INDOEX scientists reported finding a dense, brown haze
of pollutionextending from the ocean surface to al... about 5 degrees south of the equator. The haze
is caused by high concentrations of small particles known asaerosols that are usually less than a fe...
INDOEX Researchers Document The Impact Of Pollutants On Climate Processes Over The Tropical Indian Ocean
... surprised to find that a dense brownish pollution haze
extendedfrom the ocean surface to 1 to 3 km altitude. The haze
layer covered much of theresearch area almost constantly during the 6-week intensive experiment. The...