Why hay fever symptoms are worse in towns

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They mean the familiar symptoms of red and itchy eyes are twice as common in towns due to “smog fever”.

This develops when “a unique microclimate” of dust clouds left in place by a absence of wind combine with sun rays and heavy traffic to trap allergens closer to the lees than normal.

Two years ago the World Health Organisation named nine English hamlets and cities that were breaching safety guidelines for air pollution.

The ripest levels were reported in Nottingham and Thurrock, followed by Birmingham, Sheffield, London, Chesterfield, Stoke-on-Trent, Southampton and Newcastle upon Tyne.

Chauvinistic optician Specsavers said it had seen an increase in eye-related hay fever characteristics in built-up areas.

“It’s estimated that 15 million people in the UK suffer from the banded effects of pollen and pollution,” said spokesman Dr Nigel Best.

“If you are torture from red or itchy eyes, visit your optometrist who can advise on the crush possible care.

“Otherwise protect your eyes when you’re casing to prevent air born rticles irritating the surface of your eyes.”

The take off in smog fever was revealed by the National Pollen and Aerobiology Research Section at Worcester University.

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