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Flowers' fragrance diminished by air pollution, University of Virginia study indicates
Date:4/10/2008

rs, in a sense, no longer smell like flowers. This forces pollinators to search farther and longer and possibly to rely more on sight and less on smell.

The scientists calculated scent levels and distances that scents can travel under different conditions, from relatively unpolluted pre-industrial revolution levels, to the conditions now existing in rural areas downwind from large cities.

"It quickly became apparent that air pollution destroys the aroma of flowers, by as much as 90 percent from periods before automobiles and heavy industry," Fuentes said. "And the more air pollution there is in a region, the greater the destruction of the flower scents."


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Contact: Jose Fuentes
jf6s@virginia.edu
434-982-2654
University of Virginia
Source:Eurekalert

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