Get a monitor and contributor to air quality data in your city.
Air Quality 
Air Monitors
Air Purifiers
For Business
News
Support
Air quality in Koshu
Air quality index (AQI) and PM2.5 air pollution in Koshu
2 people follow this city
Koshu Air Quality Map
Real-time Koshu air pollution map
AIR QUALITY DATA CONTRIBUTORS
2 Contributors
See all
Pollen
What is the pollen count in Koshu today?
 | Index | Very high | |
 | Tree pollen | Very high | |
 | Grass pollen | None | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in Koshu?
| Weather | Broken clouds |
| Temperature | 57.2°F |
| Humidity | 99% |
| Wind | 1.8 mp/h |
| Pressure | 29.8 Hg |
live aqi city ranking
Real-time Japan city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Oita, Oita | 72 |
| 2 | Kasaoka, Okayama | 68 |
| 3 | Shikokuchuo, Ehime | 68 |
| 4 | Yawata, Kyoto | 66 |
| 5 | Toyama, Toyama | 65 |
| 6 | Fukui, Fukui | 64 |
| 7 | Saijo, Ehime | 64 |
| 8 | Maegata, Okayama | 63 |
| 9 | Kakogawa, Hyogo | 62 |
| 10 | Ozu, Ehime | 62 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
live Koshu aqi ranking
Real-time Koshu air quality ranking
| # | station | US AQI |
|---|---|---|
| 1 | Higashiyamanashi | 5 |
(local time)
SEE WORLD AQI RANKING
US AQI
33
live AQI index
Good
Overview
What is the current air quality in Koshu?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 33 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 6µg/m³ | |
| PM10 | 8µg/m³ | |
| NO2 | 1.9µg/m³ | |
!
PM2.5
x1.2
PM2.5 concentration in Koshu is currently 1.2 times the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in Koshu?
 | Enjoy outdoor activities |
 | Open your windows to bring clean, fresh air indoors GET A MONITOR |
Forecast
Koshu air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Thursday, May 30 | Moderate 57 AQI US  |  | 75.2° 57.2° |  4.5 mp/h |
| Friday, May 31 | Moderate 54 AQI US | | 64.4° 55.4° | 4.5 mp/h |
| Saturday, Jun 1 | Moderate 53 AQI US | | 69.8° 55.4° | 2.2 mp/h |
| Today | Good 33 AQI US | 100% | 69.8° 55.4° | 2.2 mp/h |
| Monday, Jun 3 | Moderate 60 AQI US | 100% | 59° 55.4° | 4.5 mp/h |
| Tuesday, Jun 4 | Moderate 57 AQI US | 100% | 64.4° 53.6° | 2.2 mp/h |
| Wednesday, Jun 5 | Moderate 63 AQI US | 100% | 64.4° 51.8° | 2.2 mp/h |
| Thursday, Jun 6 | Moderate 68 AQI US | 30% | 73.4° 51.8° | 2.2 mp/h |
| Friday, Jun 7 | Moderate 67 AQI US | 40% | 69.8° 57.2° | 4.5 mp/h |
| Saturday, Jun 8 | Moderate 67 AQI US | 20% | 68° 55.4° | 4.5 mp/h |
Interested in hourly forecast? Get the app
News
The latest air quality news and resources.
How to best protect from air pollution?
Koshu air quality data attribution
2Contributors
2 Government Contributors
Where is the cleanest air quality in Koshu?
AQI US, Metric