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Tag: "pollutant" at biology news

Researchers develop new method for facile identification of proteins in bacterial cells

...eria and their characteristic proteins that effect pollutant transformation." "This method represents a new investigative tool in bioremediation, which is the science of using biological organisms as a means of decontaminating polluted soils and water," said Dr. Halden. Johns Hopkins University is seeking pa...

UNC computer, marine scientists collaborate to predict flow of toxic waters from Katrina

...provide daily forecasts of coastal circulation and pollutant concentrations in the Katrina-affected region, information that will be vital as cleanup efforts and recovery continue. The two also have extended their work with RENCI, Reed and colleagues to analyze various aspects of last weekend's Hurricane Rita...

Study uncovers dirty little secret: Soil emissions are much-bigger-than-expected component of air pollution

...e the primary ingredients in ground-level ozone, a pollutant harmful to human health and vegetation. But new research led by a University of Washington atmospheric scientist shows that, in some regions, nitrogen oxides emitted by the soil are much greater than expected and could play a substantially larger ro...

Sensor web simulation investigates technique to improve prediction of pollution across the globe

...cular traffic in metropolitan areas are also major pollutant sources. Complex chemical interactions and atmosph...l distribution and concentration of one particular pollutant - carbon monoxide (CO). "The sensor web behaves as a search-and-rescue team," said Principal Invest...

Breath of the dragon: ERS-2 and Envisat reveal impact of economic growth on China's air quality

... and that means high levels of another atmospheric pollutant called sulphur dioxide (SO2) also detectable by SCIAMACHY. Large SO2 sources over China that overlap with nitrogen dioxide plumes are linked to power plants. Further to the west there is also sulphur dioxide produced from smouldering underground coal...

York researchers develop pollution-busting plants to clean up contaminated land

... plants, giving them the ability to biodegrade the pollutant more efficiently. Professor Bruce said: "We have taken that activity from the bacteria and put it in plants with large amounts of biomass. A tree, for instance, is effectively a big pump, seeking out water, and if we can redeploy the enzyme which de...

Rising ocean temperatures, pollution have oysters in hot water

...peratures rise. Half of the oysters exposed to the pollutant in 28° C (82° F) water died within 20 days, said l... exposed to cadmium. That makes sense, because the pollutant places stress on the oyster, which increases metabolism and oxygen demand. Temperature plus cadm...

Environmental toxins may cause body's defenses to worsen lung disease

...se of in-hospital infections, and 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 s...

In presence of fragrant cleaning products, air purifiers that emit ozone can dirty the air

... only elevate the level of ozone, a formidable air pollutant in itself, but also increase the amount of harmful particulate matter in indoor air." High levels of airborne particles can aggravate asthma and cardiovascular problems, and have been linked to higher death and lung cancer rates. Excess ozone can ...

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