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Spring's bloom may not smell so sweet anymore, as pollutants from power plants and automobiles destroy flowers' aromas, a new study suggests.
The finding could help explain why some pollinators, particularly bees, are declining in certain parts of the world.
Researchers at the University of Virginia created a mathematical model of how the scents of flowers travel with the wind. The scent molecules produced by the flowers readily bond with pollutants such as ozone, which destroys the aromas they produce.