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Air pollution may increase lung cancer risk
Chronic air pollution may increase the risk of lung cancer, suggests a Norwegian study of over 16,000 men in Thorax. Researchers monitored the health of 16, 209 men from 1972 until 1998. The men, all of whom lived in Oslo, were taking part in long term research on risk factors for heart disease and... view more (2003-12-03)

An invisible threat could change Britain's landscapes
People and farm animals are helping an invisible pollutant to change the types of plants that grow in Britain, particularly in remote and rural regions such as the Lake District.   view more (2005-02-11)

Atmosphere threatened by pollutants entering ocean, prof says
A large quantity of nitrogen compounds emitted into the atmosphere by humans through the burning of fossil fuels and the use of nitrogen fertilizers enters the oceans and may lead to the removal of some carbon dioxide from the atmosphere.   view more (2008-05-16)

Nitrous oxide from ocean microbes
A large amount of the greenhouse gas nitrous oxide is produced by bacteria in the oxygen poor parts of the ocean using nitrites, Dr Mark Trimmer told journalists at a Science Media Centre press briefing today.   view more (2007-12-11)

Too little attention is paid to the side effects of emission-limiting measures
With measures aimed at reducing the emission of pollutants such as ammonia, policy makers pay too little attention to the consequences for the emission of other substances. This is revealed in a computer model constructed by Corjan Brink from Wageningen University during his doctoral research. For... view more (2003-01-24)

Nitrous Oxide Emissions Respond Differently to No-Till Depending on the Soil Type
The practice of no-till has increased considerably during the past 20 yr. The absence of tillage coupled with the accumulation of crop residues at the soil surface modifies several soil properties but also influence nitrogen dynamics.   view more (2008-10-23)

Warning over nitric oxide for lung injury patients
Use of nitric oxide in patients with acute lung injury does not improve survival and may cause harm, warn researchers in a study published on bmj.com today.   view more (2007-03-23)

Soil emissions are much-bigger-than-expected component of air pollution
Nitrogen oxides produced by huge fires and fossil fuel combustion are a major component of air pollution. They are the primary ingredients in ground-level ozone, a pollutant harmful to human health and vegetation.   view more (2005-06-07)

Robust sensor yields cleaner car exhaust
Emissions from cars have to be reduced further in order to meet today's environmental demands. A new and robust exhaust sensor developed by researchers at Linköping University in Sweden has proven to meter the consistency of exhaust gases extremely well and is now on its way to the market.   view more (2005-04-27)

The key to the lock that controls nitrogen fixation
"Bacteria that fix nitrogen only do so when they sense that there is very little nitrogen available in their environment," says Professor Ray Dixon (Project Leader at the JIC. "Normally the genes for nitrogen fixation are locked off and only unlocked and used when nitrogen levels in... view more (2004-11-04)

Organic nitrogen gives new clue to biodiversity
Scientists have found that organic nitrogen is more important for plant growth than previously thought and could contribute to maintaining diversity in grasslands.   view more (2006-04-12)

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)

Tropical forests leak nitrogen back into atmosphere, say scientists
In findings that could influence our understanding of climate change, a Princeton research team has learned that tropical forests return to the atmosphere up to half the nitrogen they receive each year, thanks to a particular type of bacteria that lives in those forests.   view more (2006-05-23)

Ultraviolet radiation induced flux of nitrogen oxides from pine needles
In the latest edition of Nature (March 13th, 2003) a group of scientist led by professor Pertti Hari from the University of Helsinki presents a novel observation: ultraviolet radiation induced a flux of nitrogen oxides (NOx) from pine needles to the atmosphere. This result is interesting because... view more (2003-03-14)

Nitrous oxide: definitely no laughing matter
Farmers, food suppliers, policy-makers, business leaders and environmentalists are joining forces to confront the threat of the 'forgotten greenhouse gas' by taking part in an influential new forum at the University of East Anglia (UEA).   view more (2008-02-19)

How To Eliminate Nitrogen Narcosis Effects
We do not feel the nitrogen of air, and scientists do not believe that under normal pressure nitrogen can affect human organisms. However, being under water or in the altitude chamber nitrogen produces a different effect. Once the pressure is increased about four times, simulating the pressure... view more (2003-07-11)

Lack of sleep activates body's defence mechanisms
A lack of sleep is considered a threat situation, which activates the body's defence mechanisms. This is the same type of response that protects the body against viruses and bacteria as well as in stress situations.   view more (2005-03-16)

The danger of blindness after ophthalmic surgery
Ophthalmologists inject gas into the eye mainly during the surgical treatment of retinal hemorrhages or injuries. The purpose of the gas is to help press the detached retina to the wall of the eye.   view more (2008-02-26)

Reducing side effects of painkillers
Cardiff University researchers have increased the understanding of why some painkillers increase the risk of heart attack and stroke.   view more (2006-09-13)

Nitrogen retained through loss
The nitrogen cycle plays a major role in seagrass fields. Dutch researcher Arie Vonk studied the nitrogen dynamics of seagrasses in Indonesia. He discovered that the interaction between seagrasses, animals and microorganisms results in an efficient nitrogen cycle in tropical seagrass fields.... view more (2008-05-23)

Scientists may have solved an ecological riddle
A team of scientists may have solved the riddle of why plants that work with bacteria to convert atmospheric nitrogen gas into an essential biological nutrient (ammonia) tend to prevail in the world's tropical regions rather than higher latitudes.   view more (2008-06-19)

New Method Confirms Importance of Fungi in Arctic Nitrogen Cycle
A new method to calculate the transfer of nitrogen from Arctic mushrooms to plants is shedding light on how fungi living symbiotically on plant roots transfer vital nutrients to their hosts.   view more (2006-05-10)

Research team finds that microorganisms filter nitrogen from small streams
To understand how nitrogen accumulates in large rivers and oceans miles and miles away, scientists like Walter Dodds looked at small streams flowing closer to home.   view more (2008-03-14)

Peas and beans get by with more than a little help from friends
The relationship between leguminous plants such as peas and beans and nitrogen-fixing bacteria is even closer than previously thought, with bacteria acting like an intrinsic part of the plant, according to research published in the journal Nature today. Researchers from the University of Reading... view more (2003-04-14)

Catalysis discovery takes aim at NOx emissions
A discovery in molecular chemistry may help remove a barrier to widespread use of diesel and other fuel-efficient "lean burn" vehicle engines. Researchers at the Department of Energy's Pacific Northwest National Laboratory have recorded the first observations of how certain catalyst... view more (2008-02-25)
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