MED

5 active species

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4-Day Forecast:

Morning

Grass HIGH

Tree V.HI

Weed MED

Afternoon

Grass LOW

Tree MED

Weed LOW

Evening

Grass LOW

Tree HIGH

Weed LOW

Species	Level	Count
🌳 Japanese Cypress	MED	14 grains/m³
🌳 White Mulberry	LOW	4 grains/m³
🌳 White Oak	LOW	2 grains/m³
🌾 Grass (mixed)	LOW	1 grains/m³
🌳 English Oak	LOW	1 grains/m³
+35 more tracked Box Elder Alder Pigweed Common Ragweed Western Ragweed Giant Ragweed Sagebrush Mugwort Paper Birch Silver Birch Downy Birch Australian Pine Fat Hen Hazel Japanese Cedar Mediterranean Cypress Bermuda Grass Cock's-foot Ash Mountain Cedar Perennial Ryegrass Olive Pellitory-of-the-wall Upright Pellitory Parthenium Weed Timothy Grass Ribwort Plantain London Plane Black Poplar Mesquite Holm Oak Common Sorrel Russian Thistle Field Elm Stinging Nettle All species in the app: Android iOS
🌳 Japanese Cypress	LOW	4 grains/m³
🌳 White Mulberry	LOW	1 grains/m³
🌳 Box Elder	LOW	-
🌳 Alder	LOW	-
🌿 Pigweed	LOW	-
+35 more tracked Common Ragweed Western Ragweed Giant Ragweed Sagebrush Mugwort Paper Birch Silver Birch Downy Birch Australian Pine Fat Hen Hazel Japanese Cedar Mediterranean Cypress Bermuda Grass Cock's-foot Ash Mountain Cedar Perennial Ryegrass 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
🌳 Japanese Cypress	LOW	6 grains/m³
🌳 White Mulberry	LOW	2 grains/m³
🌳 White Oak	LOW	1 grains/m³
🌳 Box Elder	LOW	-
🌳 Alder	LOW	-
+35 more tracked Pigweed Common Ragweed Western Ragweed Giant Ragweed Sagebrush Mugwort Paper Birch Silver Birch Downy Birch Australian Pine Fat Hen Hazel Japanese Cedar Mediterranean Cypress Bermuda Grass Cock's-foot Ash Mountain Cedar Perennial Ryegrass Olive Pellitory-of-the-wall Upright Pellitory Parthenium Weed Timothy Grass Ribwort Plantain London Plane Grass (mixed) Black Poplar Mesquite Holm Oak English Oak Common Sorrel Russian Thistle Field Elm Stinging Nettle All species in the app: Android iOS
🌳 Japanese Cypress	LOW	7 grains/m³
🌳 White Mulberry	LOW	2 grains/m³
🌳 White Oak	LOW	1 grains/m³
🌳 Box Elder	LOW	-
🌳 Alder	LOW	-
+35 more tracked Pigweed Common Ragweed Western Ragweed Giant Ragweed Sagebrush Mugwort Paper Birch Silver Birch Downy Birch Australian Pine Fat Hen Hazel Japanese Cedar Mediterranean Cypress Bermuda Grass Cock's-foot Ash Mountain Cedar Perennial Ryegrass Olive Pellitory-of-the-wall Upright Pellitory Parthenium Weed Timothy Grass Ribwort Plantain London Plane Grass (mixed) Black Poplar Mesquite 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	MED	LOW	LOW
Thu 21 May	LOW	LOW	LOW
Fri 22 May	LOW	LOW	LOW
Sat 23 May	LOW	LOW	LOW

Map of Niigata (37.9161°, 139.0364°)

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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