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Technologists develop robust soot filter for diesel engine
In a Technology Foundation STW project, Coen van Gulijk has developed a new concept for a robust soot filter for diesel engines. As well as filter stages, the filter has an open canal so as to exclude the danger of blockage and thus fire. The new soot filter consists of series of perforated ceramic... view more (2002-09-11)

Cleaner diesels thanks to laser light
Measuring soot formation in a diesel engine is far from easy. Due to the turbulent environment in the combustion cylinder, no two combustion cycles are the same.   view more (2007-12-10)

Laboratory scientists study soot in megacity pollution
A team of Los Alamos scientists recently returned from a month-long data-gathering trip to Mexico City as part of an international, multi-agency environmental science collaboration.   view more (2006-05-09)

Toxicologists discover traces of diesel exhaust in the body
The Dutch toxicologists discovered that office staff, unloaders and drivers at an indoor transport company were exposed to almost the same extent as a result of ineffective ventilation of the office building. This shows how unreliable risk assessments based on occupational groups can be. To improve... view more (2000-02-21)

Man-made soot contributed to warming in Greenland in the early 20th century
New research shows that industrial development in North America between 1850 and 1950 greatly increased the amount of black carbon--commonly known as soot-- that fell on Greenland's glaciers and ice sheets.   view more (2007-08-10)

Dirty snow may warm Arctic as much as greenhouse gases
The global warming debate has focused on carbon dioxide emissions, but scientists at UC Irvine have determined that a lesser-known mechanism - dirty snow - can explain one-third or more of the Arctic warming primarily attributed to greenhouse gases.   view more (2007-06-07)

Soot from wood stoves in developing world impacts global warming more than expected
New measurements of soot produced by traditional cook stoves used in developing countries suggest that these stoves emit more harmful smoke particles and could have a much greater impact on global climate change than previously thought.   view more (2006-10-25)

Carnegie Mellon researchers urge regulators to rethink strategies for soot emission
Carnegie Mellon University researchers say government officials need to adopt new ways of measuring and regulating the fine particles of smoke and soot so endemic to serious health problems and the global warming crisis.   view more (2007-03-02)

Iowa State engineer develops laser technologies to analyze combustion, biofuels
Let's say a fuel derived from biomass produces too much soot when it's burned in a combustion chamber designed for fossil fuels. How can an engineer find the source of the problem? It originates, after all, in the flame zone of a highly turbulent combustion chamber. That's not exactly an easy place... view more (2007-12-06)

Transported Black Carbon a Significant Player in Pacific Ocean Climate
Soot and other particulate pollution from Asian sources make up more than 75 percent of black carbon transported at high altitudes, according to a Scripps Institution of Oceanography, UC San Diego-led study.   view more (2007-03-15)

Dust clouds in cosmic cycle
It has been a mystery for astronomers how certain dying stars have their colossal quantities of material blown out into the universe and shrink into objects called "white dwarves".   view more (2007-04-05)

Asthma linked to soot from diesel trucks in Bronx
Soot particles spewing from the exhaust of diesel trucks constitute a major contributor to the alarmingly high rates of asthma symptoms among school-aged children in the South Bronx.   view more (2006-10-17)

Firefighters face increased risk for certain cancers
University of Cincinnati (UC) environmental health researchers have determined that firefighters are significantly more likely to develop four different types of cancer than workers in other fields.   view more (2006-11-10)

Russian Filter For Russian Exhausts
Automobiles manufactured in Russia are now often equipped with expensive American or European catalytic exhaust scrubbers - converters. However, according the opinion of researchers from the Mendeleyev Russian Chemical-Engineering University, Russian automobiles will be soon equipped with exhaust... view more (2004-06-15)

Catalytic converter gets the pollution out of diesel engines
In the near future the usual summer ozone peaks exceeding the allowed threshold may be a thing of the past: the Paul Scherrer Institute (PSI) in Switzerland has developed a new type of catalytic conversion system, which filters nearly all nitrogen oxides out of diesel exhaust gases using a refined... view more (2004-09-08)

NIST laser-based method cleans up grubby nanotubes
Before carbon nanotubes can fulfill their promise as ultrastrong fibers, electrical wires in molecular devices, or hydrogen storage components for fuel cells, better methods are needed for purifying raw nanotube materials.   view more (2006-12-26)

NASA probes the sources of the world's tiny pollutants
Pinpointing pollutant sources is an important part of the ongoing battle to improve air quality and to understand its impact on climate. Scientists using NASA data recently tracked the path and distribution of aerosols — tiny particles suspended in the air — to link their region of... view more (2007-01-31)

Arctic pollution's surprising history
Scientists know that air pollution particles from mid-latitude cities migrate to the Arctic and form an ugly haze, but a new University of Utah study finds surprising evidence that polar explorers saw the same phenomenon as early as 1870.   view more (2008-03-19)

Miniature lab ice spikes may hold clues to warming impacts on glaciers
Tiny lab versions of 12-foot tall snow spikes that form naturally on some high mountain glaciers may someday help scientists mitigate the effects of global warming in the Andes, according to a University of Colorado at Boulder professor.   view more (2007-03-06)

Scientists to track impact of Asian dust and pollution on clouds, climate change
Scientists using one of the nation's newest and most capable research aircraft are launching a far-reaching field project this month to study plumes of airborne dust and pollutants that originate in Asia and journey to North America.   view more (2007-04-19)

£2.3 million invested in the air that we breathe
A new institute opens today (27 January 2004) which will refine the art and science of predicting air quality. Its work will give advance warning of when air will become seriously polluted, helping people whose health may be affected.   view more (2004-01-23)

Scientists track impact of Asian dust and pollution on clouds, climate change
Scientists using one of the nation's newest and most capable research aircraft are launching a far-reaching field project this month to study plumes of airborne dust and pollutants that originate in Asia and journey to North America.   view more (2007-04-20)

Ceramic microreactors developed for on-site hydrogen production
Scientists at the University of Illinois at Urbana-Champaign have designed and built ceramic microreactors for the on-site reforming of hydrocarbon fuels, such as propane, into hydrogen for use in fuel cells and other portable power sources.   view more (2006-09-20)

Research finds that Earth's climate is approaching 'dangerous' point
NASA and Columbia University Earth Institute research finds that human-made greenhouse gases have brought the Earth's climate close to critical tipping points, with potentially dangerous consequences for the planet.   view more (2007-06-01)

INDOEX preliminary results
INDOEX - preliminary findings   view more (1999-03-31)

Brightening up old church windows
Somber semi-darkness, flickering candles and the smell of incense - visitors to old churches are delighted by this atmosphere, especially at Christmas time. Yet only a few of them will have noticed that Gothic churches are growing darker inside with every passing year. The reason: Deposits of soot... view more (2002-12-20)

Background: Particulates - Ever tinier particles are coming under the researchers' microscopes
Our senses are not attuned to this danger. You can't smell them, you can't taste them and particulates are not visible to the naked eye. They are tiny, with a diameter not even a tenth of that of a hair. Yet they have a major impact.   view more (2005-03-18)

A WAKE-UP CALL FOR ENVIRONMENTAL HEALTH (p 587)
Issue 23 August 2003 Embargoed 0001 h (London time) 22 August 2003. This week's editorial comments on the new energy bill that will increase US domestic energy supply, concluding that the bill's implications for increased energy consumption rather than conservation is 'a step backwards for... view more (2003-08-20)

Spin control: New technique sorts nanotubes by length
Researchers at the National Institute of Standards and Technology (NIST) have reported a new technique to sort batches of carbon nanotubes by length using high-speed centrifuges.   view more (2008-05-19)

Dating Of The Turin Shroad Was Incorrect
The researchers were allowed a single chance to examine the Turin Shroud. On April 21, 1988 a small piece, its square being about 7 square centimeters, was cut off from the Shroud under the supervision of Cardinal Anastacio Ballestrero, the Archbishop of Turin, and the invited experts. The sample... view more (2002-04-02)

LSU scientist finds evidence of 'rain-making' bacteria
Brent Christner, LSU professor of biological sciences, in partnership with colleagues in Montana and France, recently found evidence that rain-making bacteria are widely distributed in the atmosphere.   view more (2008-02-29)

Tiny dust particles from Asian deserts common over western United States
It has been a decade since University of Washington scientists first pinpointed specific instances of air pollution, including Gobi Desert dust, traversing the Pacific Ocean and adding to the mix of atmospheric pollution already present along the West Coast of North America.   view more (2007-12-13)

Fill up with biodiesel, please
One day, petroleum and fuels derived from it will be exhausted. Moreover, every time we take to the road in our vehicle, the mark we leave on the natural environment is huge. Nowadays, new alternatives to fossil fuels are being developed. One of these is biodiesel, a fuel produced from vegetable... view more (2004-05-14)

Invisible gases form most organic haze in urban, rural areas
A new study involving the University of Colorado at Boulder shows that invisible, reactive gases hovering over Earth's surface, not direct emissions of particulates, form the bulk of organic haze in both urban and rural areas around the world.   view more (2007-07-10)

Fuel From Natural Gas
The scientists from the Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, won Golden Medal and a bonus grant at the 49th World Exhibition of Invention, Research and Industrial Innovation ("Eureka") in Brussels for their work "Synthesis of dimethyl ether". The dateless... view more (2002-02-08)

Road pollution blamed for higher allergy risk in kids
New evidence blames traffic-related pollution for increasing the risk of allergy and atopic diseases among children by more than fifty percent. What's more, the closer children live to roads, the higher their risk.   view more (2008-06-13)

Harvard Six Cities Study Follow Up: Reducing Soot Particles Is Associated with Longer Lives
An eight-year follow up to the landmark Harvard Six Cities Study has found an association between people living longer and cities reducing the amount of fine particulate matter, or soot, in their air.   view more (2006-03-16)

Carbon nanotube measurements: latest in NIST 'how-to' series
The National Institute of Standards and Technology (NIST), in collaboration with the National Aeronautics and Space Administration (NASA), has published detailed guidelines for making essential measurements on samples of single-walled carbon nanotubes (SWCNTs). The new guide constitutes the current... view more (2008-04-16)

NOAA Aircraft to Probe Arctic Pollution
NOAA scientists are now flying through springtime Arctic pollution to find out why the region is warming - and summertime sea ice is melting - faster than predicted. Some 35 NOAA researchers are gathering with government and university colleagues in Fairbanks, Alaska, to conduct the study through... view more (2008-04-08)

Unlocking the frozen secrets of comet Wild 2
Eleven months ago, NASA's Stardust mission touched down in the Utah desert with the first solid comet samples ever retrieved from space. Since then, nearly 200 scientists from around the globe have studied the minuscule grains, looking for clues to the physical and chemical history of our solar... view more (2006-12-20)

M. D. Anderson teaches the art of aromatherapy to soothe and heal
A bubble bath that improves memory. A kitchen cleaner that wards off nausea and energizes. A scented handkerchief that calms a patient entering the MRI. The benefits of aromatherapy are real. Below, learn the uses, healing properties and how-tos of using aromatherapy to heal and de-stress from The... view more (2006-08-28)

People with diabetes more sensitive to cardiovascular effects from air pollution
People with diabetes may be at higher risk for cardiovascular problems when air pollution levels are higher, according to a new study of Boston-area residents. The ability of the blood vessels to control blood flow was impaired in adults with diabetes on days with elevated levels of particles from... view more (2005-05-31)

Extraterrestrial Impact Likely Source of Sudden Ice Age Extinctions
At the end of the Pleistocene era, wooly mammoths roamed North America along with a cast of fantastic creatures - giant sloths, saber-toothed cats, camels, lions, tapirs and the incredible teratorn, a condor with a 16-foot wingspan.   view more (2007-09-25)

Diesel exhaust fumes affect people with asthma, finds study on London's Oxford Street
Diesel exhaust fumes on polluted streets have a measurable effect on people with asthma, according to the first study looking at exhausts and asthma in a real-life setting, published on 6 December in the New England Journal of Medicine.   view more (2007-12-06)

Reducing air pollution could increase rice harvests in India
New research from the University of California indicates that reductions of human-generated air pollution could create unexpected agricultural benefits in one of the world's poorest regions. These new findings will be published online the week of Dec. 4 in the journal Proceedings of the National... view more (2006-12-05)

Mapping the Milky Way
A new map of the centre of our own galaxy, The Milky Way, is the biggest, most detailed, and most sensitive yet made. The map shows giant streamers and huge clouds of interstellar gas where stars are being born 26,000 light years from Earth - shedding new light on the exotic structures in this... view more (2000-12-19)

MIT Researchers work toward spark-free, fuel-efficient engines
In an advance that could help curb global demand for oil, MIT researchers have demonstrated how ordinary spark-ignition automobile engines can, under certain driving conditions, move into a spark-free operating mode that is more fuel-efficient and just as clean.   view more (2007-07-24)

Researchers show how air pollution can cause heart disease
New York University School of Medicine researchers provide some of the most compelling evidence yet that long-term exposure to air pollution-even at levels within federal standards-causes heart disease.   view more (2005-12-21)

Elderly have higher risk for cardiovascular, respiratory disease
New data from a four-year study of 11.5 million Medicare enrollees show that short-term exposure to fine particle air pollution from such sources as motor vehicle exhaust and power plant emissions significantly increases the risk for cardiovascular and respiratory disease among people over 65 years... view more (2006-03-08)
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