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About Pollen in Manchester

Manchester’s allergy profile commences early spring (March-April) with high Birch pollen, originating from urban tree-lined streets and parks like Platt Fields; Oak pollen follows (April-May) from city green spaces including Heaton Park. Summer (May-July) sees dominant Grass pollen, primarily from the Mersey Valley’s expansive meadows and River Irwell’s riverbanks.

The city’s dense urban infrastructure creates a ‘canyon effect,’ trapping and amplifying localised pollen concentrations. Persistent damp autumns (September-November) and winter humidity foster significant Mould spore proliferation from decomposing leaf litter in parks and shaded, unventilated zones.

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Grass

Tree

Weed

What Pollen Levels Mean

LOW Symptoms are unlikely
MEDIUM Moderate risk of symptoms
HIGH Widespread symptoms likely
VERY HIGH Expect significant symptoms
EXTREME Extremely high symptom likelihood & severity