Hachiōji air quality · Tokyo, Japan
Air this clean can boost your mood and focus
US AQI 44 (Good) in Hachiōji, from 12 MOE Japan monitoring stations. Main pollutant: PM2.5.
Updated
Pollutants in Hachiōji
- PM2.5 · µg/m³8.0Under WHO limit
- NO₂ · µg/m³20.7Under WHO limit
- O₃ · µg/m³27.4
- SO₂ · µg/m³2.6Under WHO limit
- CO · mg/m³0.23
Concentrations averaged across the city's stations. WHO multiples use the 2021 24-hour guidelines.
Is it safe outside in Hachiōji right now?
Air quality is satisfactory and poses little or no risk.
Walking and commuting
Go aheadEnjoy it.
Running and jogging
Go aheadA great time to run outdoors.
Cycling
Go aheadRide freely.
Children playing outside
Go aheadNo limits.
Older adults and heart or lung conditions
Go aheadNo limits.
Open windows
Go aheadAir out your home.
Mask outdoors
Not neededNot needed.
Air purifier indoors
Not neededNot needed.
Based on the US EPA Air Quality Guide, applied to the current US AQI category. If you have symptoms, follow your doctor's advice.
What US AQI 0–50 means for your health →
Air quality by area in Hachiōji
8 stations, worst first- 甲州街道八木町Moderate · roadside56
- 川崎街道百草園Moderate · roadside53
- 福生市本町Good50
- 立川市泉町Good44
- 甲州街道国立Good · roadside44
Show all 8 stations
- 八王子市片倉町Good39
- 府中市四谷Good28
- 津久井Good6
Roadside and industrial monitors are shown but are not part of the city figure.
Hachiōji air quality history
Daily average, 16 days- 32average daily US AQI over 16 days
- 59worst day, 2 November
- 16cleanest day, 26 October
- 0days at Unhealthy or worse
The last 7 days averaged 26, better than the week before (40). 13 of the last 16 days were Good.
Nearby cities
Japan rankingHachiōji air quality: common questions
What is the AQI in Hachiōji right now?
The US AQI in Hachiōji is 44 (Good), based on 12 monitoring stations. The main pollutant is PM2.5.
Is it safe to go outside in Hachiōji today?
A great time to be outside. Air quality is satisfactory and poses little or no risk. For runners: A great time to run outdoors.
Which area of Hachiōji has the worst air right now?
甲州街道八木町 has the highest reading at 56 (Moderate). 津久井 has the lowest at 6, out of 8 stations reporting.
How has air quality in Hachiōji been recently?
Over the last 16 days with data, Hachiōji averaged US AQI 32. The worst day was 2 November at 59; the cleanest was 26 October at 16. 0 days were at Unhealthy or worse.
Where does Hachiōji's air quality data come from?
From Ministry of the Environment, Japan · AEROS (soramame.env.go.jp) · preliminary data, using 12 monitoring stations in and around the city. Good Air does not estimate or adjust these readings.
Source: Ministry of the Environment, Japan · AEROS (soramame.env.go.jp) · preliminary data. Readings are published by the monitoring agency and may be revised.