LOW

1 active species

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4-Day Forecast:

Morning

Grass HIGH

Tree LOW

Weed MED

Afternoon

Grass LOW

Tree LOW

Weed LOW

Evening

Grass MED

Tree LOW

Weed LOW

Species	Level	Count
🌾 Grass (mixed)	LOW	1 grains/m³
🌳 Box Elder	LOW	-
🌳 Alder	LOW	-
🌿 Pigweed	LOW	-
🌿 Common Ragweed	LOW	-
+35 more tracked Western Ragweed Giant Ragweed Sagebrush Mugwort Paper Birch Silver Birch Downy Birch Australian Pine Japanese Cypress Fat Hen Hazel Japanese Cedar Mediterranean Cypress Bermuda Grass Cock's-foot Ash Mountain Cedar Perennial Ryegrass White Mulberry Olive Pellitory-of-the-wall Upright Pellitory Parthenium Weed Timothy Grass Ribwort Plantain London Plane Black Poplar Mesquite White Oak Holm Oak English Oak Common Sorrel Russian Thistle Field Elm Stinging Nettle All species in the app: Android iOS
🌳 Box Elder	LOW	-
🌳 Alder	LOW	-
🌿 Pigweed	LOW	-
🌿 Common Ragweed	LOW	-
🌿 Western Ragweed	LOW	-
+35 more tracked Giant Ragweed Sagebrush Mugwort Paper Birch Silver Birch Downy Birch Australian Pine Japanese Cypress Fat Hen Hazel Japanese Cedar Mediterranean Cypress Bermuda Grass Cock's-foot Ash Mountain Cedar Perennial Ryegrass White Mulberry Olive Pellitory-of-the-wall Upright Pellitory Parthenium Weed Timothy Grass Ribwort Plantain London Plane Grass (mixed) Black Poplar Mesquite White Oak Holm Oak English Oak Common Sorrel Russian Thistle Field Elm Stinging Nettle All species in the app: Android iOS
🌳 Box Elder	LOW	-
🌳 Alder	LOW	-
🌿 Pigweed	LOW	-
🌿 Common Ragweed	LOW	-
🌿 Western Ragweed	LOW	-
+35 more tracked Giant Ragweed Sagebrush Mugwort Paper Birch Silver Birch Downy Birch Australian Pine Japanese Cypress Fat Hen Hazel Japanese Cedar Mediterranean Cypress Bermuda Grass Cock's-foot Ash Mountain Cedar Perennial Ryegrass White Mulberry Olive Pellitory-of-the-wall Upright Pellitory Parthenium Weed Timothy Grass Ribwort Plantain London Plane Grass (mixed) Black Poplar Mesquite White Oak Holm Oak English Oak Common Sorrel Russian Thistle Field Elm Stinging Nettle All species in the app: Android iOS
🌾 Grass (mixed)	LOW	1 grains/m³
🌳 Box Elder	LOW	-
🌳 Alder	LOW	-
🌿 Pigweed	LOW	-
🌿 Common Ragweed	LOW	-
+35 more tracked Western Ragweed Giant Ragweed Sagebrush Mugwort Paper Birch Silver Birch Downy Birch Australian Pine Japanese Cypress Fat Hen Hazel Japanese Cedar Mediterranean Cypress Bermuda Grass Cock's-foot Ash Mountain Cedar Perennial Ryegrass White Mulberry Olive Pellitory-of-the-wall Upright Pellitory Parthenium Weed Timothy Grass Ribwort Plantain London Plane Black Poplar Mesquite White Oak Holm Oak English Oak Common Sorrel Russian Thistle Field Elm Stinging Nettle All species in the app: Android iOS

Last updated: 14:03 UTC

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

Map of Yokohama (35.4437°, 139.638°)

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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