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About Pollen in Lewisham

Lewisham’s allergy season commences early spring (March-May) with dominant Birch and Oak pollen, originating from mature trees in Blackheath, Greenwich Park, and along the Ravensbourne River corridor; summer (May-July) peaks with Grass pollen, prevalent in Ladywell Fields, Hilly Fields, and other urban green spaces. Lewisham’s urban topography and varied parklands can localise pollen concentrations. Autumn (September-November) brings elevated Mould spores, primarily from damp leaf litter and decomposing organic matter in shaded, poorly drained areas.

HIGH

10 active species

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4-Day Forecast:

Morning

Grass LOW

Tree V.HI

Weed LOW

Afternoon

Grass LOW

Tree HIGH

Weed LOW

Evening

Grass LOW

Tree MED

Weed LOW

Species	Level	Count
🌳 English Oak	HIGH	63 grains/m³
🌳 Holm Oak	HIGH	56 grains/m³
🌳 London Plane	MED	49 grains/m³
🌳 White Oak	MED	38 grains/m³
🌳 Paper Birch	MED	28 grains/m³
+35 more tracked Downy Birch Perennial Ryegrass Ribwort Plantain Cock's-foot Common Sorrel Box Elder Alder Pigweed Common Ragweed Western Ragweed Giant Ragweed Sagebrush Mugwort Silver Birch Australian Pine Japanese Cypress Fat Hen Hazel Japanese Cedar Mediterranean Cypress Bermuda Grass Ash Mountain Cedar White Mulberry Olive Pellitory-of-the-wall Upright Pellitory Parthenium Weed Timothy Grass Grass (mixed) Black Poplar Mesquite Russian Thistle Field Elm Stinging Nettle All species in the app: Android iOS
🌳 English Oak	HIGH	72 grains/m³
🌳 Holm Oak	HIGH	64 grains/m³
🌳 London Plane	HIGH	56 grains/m³
🌳 White Oak	MED	43 grains/m³
🌳 Paper Birch	MED	32 grains/m³
+35 more tracked Downy Birch Perennial Ryegrass Ribwort Plantain Cock's-foot Common Sorrel Grass (mixed) Box Elder Alder Pigweed Common Ragweed Western Ragweed Giant Ragweed Sagebrush Mugwort Silver Birch Australian Pine Japanese Cypress Fat Hen Hazel Japanese Cedar Mediterranean Cypress Bermuda Grass Ash Mountain Cedar White Mulberry Olive Pellitory-of-the-wall Upright Pellitory Parthenium Weed Timothy Grass Black Poplar Mesquite Russian Thistle Field Elm Stinging Nettle All species in the app: Android iOS
🌳 English Oak	HIGH	62 grains/m³
🌳 Holm Oak	HIGH	56 grains/m³
🌳 London Plane	MED	48 grains/m³
🌳 White Oak	MED	37 grains/m³
🌳 Paper Birch	MED	27 grains/m³
+35 more tracked Downy Birch Perennial Ryegrass Ribwort Plantain Common Sorrel Cock's-foot Grass (mixed) Stinging Nettle Box Elder Alder Pigweed Common Ragweed Western Ragweed Giant Ragweed Sagebrush Mugwort Silver Birch Australian Pine Japanese Cypress Fat Hen Hazel Japanese Cedar Mediterranean Cypress Bermuda Grass Ash Mountain Cedar White Mulberry Olive Pellitory-of-the-wall Upright Pellitory Parthenium Weed Timothy Grass Black Poplar Mesquite Russian Thistle Field Elm All species in the app: Android iOS
🌳 English Oak	MED	29 grains/m³
🌳 Holm Oak	MED	26 grains/m³
🌳 London Plane	MED	23 grains/m³
🌳 White Oak	MED	17 grains/m³
🌳 Paper Birch	MED	13 grains/m³
+35 more tracked Downy Birch Ribwort Plantain Perennial Ryegrass Common Sorrel Cock's-foot Pigweed Stinging Nettle Box Elder Alder Common Ragweed Western Ragweed Giant Ragweed Sagebrush Mugwort Silver Birch Australian Pine Japanese Cypress Fat Hen Hazel Japanese Cedar Mediterranean Cypress Bermuda Grass Ash Mountain Cedar White Mulberry Olive Pellitory-of-the-wall Upright Pellitory Parthenium Weed Timothy Grass Grass (mixed) Black Poplar Mesquite Russian Thistle Field Elm All species in the app: Android iOS

Last updated: 14:02 UTC

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

Map of Lewisham (51.426242°, -0.07181°)

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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