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About Pollen in Leeds

Leeds’ spring allergy profile, peaking April-May, is dominated by Birch and Oak pollen, primarily sourced from extensive urban woodlands including Roundhay Park and Golden Acre Park; May-July sees high Grass pollen levels, originating from River Aire floodplains and city green spaces.

The city’s topography, including the Aire Valley, can trap and concentrate pollen locally; Mould spores emerge late-season, August-November, fuelled by damp organic matter decomposition across Leeds’ parks and shaded urban zones.

V.HI

11 active species

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4-Day Forecast:

Morning

Grass LOW

Tree V.HI

Weed LOW

Afternoon

Grass LOW

Tree V.HI

Weed LOW

Evening

Grass LOW

Tree MED

Weed LOW

Species	Level	Count
🌳 Silver Birch	V.HI	103 grains/m³
🌳 Downy Birch	HIGH	92 grains/m³
🌳 Paper Birch	HIGH	73 grains/m³
🌳 English Oak	HIGH	58 grains/m³
🌳 White Oak	MED	29 grains/m³
+35 more tracked Holm Oak Black Poplar Box Elder Ash London Plane Field Elm Alder Pigweed Common Ragweed Western Ragweed Giant Ragweed Sagebrush Mugwort Australian Pine Japanese Cypress Fat Hen Hazel Japanese Cedar Mediterranean Cypress Bermuda Grass Cock's-foot Mountain Cedar Perennial Ryegrass White Mulberry Olive Pellitory-of-the-wall Upright Pellitory Parthenium Weed Timothy Grass Ribwort Plantain Grass (mixed) Mesquite Common Sorrel Russian Thistle Stinging Nettle All species in the app: Android iOS
🌳 Silver Birch	V.HI	138 grains/m³
🌳 Downy Birch	V.HI	123 grains/m³
🌳 Paper Birch	HIGH	97 grains/m³
🌳 English Oak	HIGH	78 grains/m³
🌳 White Oak	MED	39 grains/m³
+35 more tracked Holm Oak Black Poplar Box Elder Ash London Plane Field Elm Alder Pigweed Common Ragweed Western Ragweed Giant Ragweed Sagebrush Mugwort Australian Pine Japanese Cypress Fat Hen Hazel Japanese Cedar Mediterranean Cypress Bermuda Grass Cock's-foot Mountain Cedar Perennial Ryegrass White Mulberry Olive Pellitory-of-the-wall Upright Pellitory Parthenium Weed Timothy Grass Ribwort Plantain Grass (mixed) Mesquite Common Sorrel Russian Thistle Stinging Nettle All species in the app: Android iOS
🌳 Silver Birch	V.HI	103 grains/m³
🌳 Downy Birch	HIGH	92 grains/m³
🌳 Paper Birch	HIGH	73 grains/m³
🌳 English Oak	HIGH	58 grains/m³
🌳 White Oak	MED	29 grains/m³
+35 more tracked Holm Oak Box Elder Black Poplar Ash London Plane Field Elm Alder Pigweed Common Ragweed Western Ragweed Giant Ragweed Sagebrush Mugwort Australian Pine Japanese Cypress Fat Hen Hazel Japanese Cedar Mediterranean Cypress Bermuda Grass Cock's-foot Mountain Cedar Perennial Ryegrass White Mulberry Olive Pellitory-of-the-wall Upright Pellitory Parthenium Weed Timothy Grass Ribwort Plantain Grass (mixed) Mesquite Common Sorrel Russian Thistle Stinging Nettle All species in the app: Android iOS
🌳 Silver Birch	HIGH	57 grains/m³
🌳 Downy Birch	HIGH	51 grains/m³
🌳 Paper Birch	MED	40 grains/m³
🌳 English Oak	MED	32 grains/m³
🌳 White Oak	MED	16 grains/m³
+35 more tracked Holm Oak Box Elder Black Poplar Ash London Plane Field Elm Alder Pigweed Common Ragweed Western Ragweed Giant Ragweed Sagebrush Mugwort Australian Pine Japanese Cypress Fat Hen Hazel Japanese Cedar Mediterranean Cypress Bermuda Grass Cock's-foot Mountain Cedar Perennial Ryegrass White Mulberry Olive Pellitory-of-the-wall Upright Pellitory Parthenium Weed Timothy Grass Ribwort Plantain Grass (mixed) Mesquite Common Sorrel Russian Thistle Stinging Nettle All species in the app: Android iOS

Last updated: 14:02 UTC

4-Day Forecast	Tree	Grass	Weed
Wed 20 May	V.HI	LOW	LOW
Thu 21 May	V.HI	LOW	LOW
Fri 22 May	V.HI	LOW	LOW
Sat 23 May	HIGH	LOW	LOW

Map of Leeds (53.810492°, -1.546336°)

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What Pollen Levels Mean

LOW Symptoms are unlikely

MED Moderate risk of symptoms

HIGH Widespread symptoms likely

V.HI Expect significant symptoms

X.HI Extremely high symptom likelihood & severity