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About Pollen in Rotherham

Rotherham’s seasonal allergy profile is pronounced: March-April sees high Birch and Alder pollen from urban trees and River Don floodplain areas; April-May, Oak pollen dominates from local woodlands and parkland, including Clifton Park. Late spring to summer, May-July, grass pollen peaks across extensive local meadows, sports fields, and the banks of the River Don and River Rother.

The town’s valley topography, particularly the River Don corridor, can trap and concentrate airborne pollen. Autumn, September-November, brings elevated mould spore counts, originating from decaying leaf litter and damp vegetation prevalent in parks and shaded residential zones.

HIGH

11 active species

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4-Day Forecast:

Morning

Grass LOW

Tree X.HI

Weed LOW

Afternoon

Grass LOW

Tree HIGH

Weed LOW

Evening

Grass LOW

Tree MED

Weed LOW

Species	Level	Count
🌳 Silver Birch	HIGH	85 grains/m³
🌳 Downy Birch	HIGH	82 grains/m³
🌳 Paper Birch	HIGH	65 grains/m³
🌳 English Oak	HIGH	53 grains/m³
🌳 White Oak	MED	25 grains/m³
+35 more tracked Holm Oak Box Elder London Plane Black Poplar Ash 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	155 grains/m³
🌳 Downy Birch	V.HI	150 grains/m³
🌳 Paper Birch	V.HI	119 grains/m³
🌳 English Oak	HIGH	97 grains/m³
🌳 White Oak	MED	46 grains/m³
+35 more tracked Holm Oak London Plane Black Poplar Box Elder Ash 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	109 grains/m³
🌳 Downy Birch	V.HI	106 grains/m³
🌳 Paper Birch	HIGH	84 grains/m³
🌳 English Oak	HIGH	68 grains/m³
🌳 White Oak	MED	33 grains/m³
+35 more tracked Holm Oak London Plane Black Poplar Box Elder Ash 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	64 grains/m³
🌳 Downy Birch	HIGH	62 grains/m³
🌳 Paper Birch	MED	49 grains/m³
🌳 English Oak	MED	40 grains/m³
🌳 White Oak	MED	19 grains/m³
+35 more tracked Holm Oak Box Elder London Plane Black Poplar Ash 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: 14:03 UTC

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

Map of Rotherham (53.431168°, -1.354447°)

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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