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Honeybee diesel alert.

DIESEL pollution makes it harder for honeybees to find flowers by changing the chemical make-up of their scent, scientists have found.

Honeybees use floral odours to find flowers that will give the best yields of pollen and nectar but diesel fumes can affect their ability to locate and recognise the plants, potentially affecting pollination and ultimately global food security.

Researchers from the University of Southampton took eight chemicals found in the odour of oilseed rape flowers and mixed them both with clean air, which had no impact on the scent, and air containing diesel fumes.

When mixed with diesel fumes, six of the eight chemicals reduced in volume and two disappeared completely within a minute, changing the chemical mix of the scent as it reacted with nitrogen oxides found in the exhaust fumes.
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Publication:Coventry Evening Telegraph (England)
Date:Oct 4, 2013
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