What's behind smelly wine

Aging often improves the flavor of wine, but sometimes the beverage emerges from storage with an unpleasant smell. One of the prime culprits is hydrogen sulfide (H2S), which can give the affected wine an aroma of sewage or ...

Getting the most out of atmospheric data analysis

New particle formation in the atmosphere provides the nucleation centres required for the formation of clouds, making it an important process for understanding climate. Efforts to investigate the complex balance of chemistry ...

A clearer path to clean air in China

For more than 15 years, the Chinese government has invested billions of dollars to clean up its deadly air pollution, focusing intensely on reducing emissions of sulfur dioxide from coal-burning power plants.

Mice help find gene for bad breath

An international team of researchers has identified a cause for chronic bad breath (halitosis), with the help of gene knockout mice from the UC Davis Mouse Biology Program. The results are published Dec. 18 in the journal ...

Understanding sulfur's rotten smell

Though odorless in its normal state, utility companies add sulfur-containing odorants - called mercaptans or thiols - to the gas so it's easy to detect a leak. The foul smell is reminiscent of rotting cabbage or spoiled eggs.

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