Chiba: Air Pollution Today — AQI Index, PM2.5/PM10, Smog Alerts and Forecast

Latest air quality data: Chiba

Locations: Tokyo » Yokohama » Osaka City » Nagoya » Sapporo » Kōbe Shi » Kyoto » Fukuoka City » Saitama-shi » Hiroshima City » Sendai » Kitakyushu City » Chiba Sakai » Shizuoka-shi » Kumamoto » Ōta-ku » Edogawa-ku » Sagamihara-shi » Okayama »

Pollution and air quality forecast for Chiba. Today is Thursday, August 27, 2026. The following air pollution values have been recorded for Chiba:

particulate matter (PM2.5) dust - 18 (Moderate)
particulate matter (PM10) suspended dust - 22 (Moderate)
ozone (O3) - 24 (Good)
nitrogen dioxide (NO2) - 29 (Good)
sulfur dioxide (SO2) - 24 (Good)
carbon monoxide (CO) - 337 (Good)

Real-time Air Quality Index (AQI) for Chiba, Thursday, August 27, 2026: 2.

AQI 2 Moderate

What is the air quality in Chiba today? Is the air polluted in Chiba?. Is there smog?

Today (Thursday, August 27, 2026) air quality is moderate in Chiba. Some pollutants in Chiba may slightly affect very few hypersensitive individuals. Air pollutants in Chiba may cause minor breathing discomfort to sensitive people.

What is the current level of PM2.5 in Chiba? (particulate matter (PM2.5) dust)
Today's PM2.5 level is: 18 (Moderate) For comparison, the highest level of PM2.5 in Chiba in the last 7 days was: 23 (Saturday, August 22, 2026) and the lowest: 11 (Tuesday, August 25, 2026).

What is the level of PM10 today in Chiba? (particulate matter (PM10) suspended dust)
The current level of particulate matter PM10 in Chiba is: 22 (Moderate)

How is the O3 level today in Chiba? (ozone (O3))
24 (Good)

How high is the level of NO2? (nitrogen dioxide (NO2))
29 (Good)

What is the level of SO2 pollution? (sulfur dioxide (SO2))
24 (Good)

How high is the CO level? (carbon monoxide (CO))
337 (Good)

Current data Thursday, August 27, 2026 at 10:00 AM

PM2,5 18 (Moderate)

PM10 22 (Moderate)

O3 24 (Good)

NO2 29 (Good)

SO2 24 (Good)

CO 337 (Good)

Data on air pollution from recent days in Chiba

index	2026-08-27	2026-08-26	2026-08-25	2026-08-24	2026-08-23	2026-08-22	2026-08-21	2026-08-20
pm25	20 Moderate	12 Good	11 Good	19 Moderate	16 Moderate	23 Moderate	13 Moderate	14 Moderate
pm10	22 Moderate	14 Good	13 Good	19 Good	18 Good	25 Moderate	16 Good	17 Good
o3	18 Good	42 Good	50 Good	70 Moderate	66 Good	36 Good	28 Good	28 Good
no2	46 Moderate	31 Good	26 Good	39 Good	31 Good	39 Good	28 Good	30 Good
so2	28 Good	20 Good	15 Good	21 Good	15 Good	22 Good	21 Good	15 Good
co	301 Good	313 Good	263 Good	352 Good	243 Good	268 Good	257 Good	269 Good

data source »

Quality of life in Chiba

Green and Parks in the City

Chiba 63%

South Korea: 61% Taiwan: 53% Northern Mariana Islands: 83% Guam: 29%

particulate matter PM2.5

Chiba 17 (Moderate)

Pleasure of spending time in the city

Chiba 66%

South Korea: 43% North Korea: 44% Taiwan: 47% Northern Mariana Islands: 81% Guam: 62%

particulate matter PM10

Chiba 35 (Moderate)

Air Pollution

Chiba 37%

South Korea: 69% North Korea: 44% Taiwan: 61% Northern Mariana Islands: 11% Guam: 33%

Garbage Disposal

Chiba 68%

South Korea: 62% North Korea: 47% Taiwan: 65% Northern Mariana Islands: 42% Guam: 35%

Availability and quality of drinking water

Chiba 71%

South Korea: 72% North Korea: 47% Taiwan: 54% Northern Mariana Islands: 56% Guam: 52%

Cleanliness and tidiness

Chiba 72%

South Korea: 63% North Korea: 58% Taiwan: 56% Northern Mariana Islands: 56% Guam: 37%

Noise and Light pollution

Chiba 45%

North Korea: 33% Taiwan: 59% Northern Mariana Islands: 42% Guam: 54%

Water Pollution

Chiba 37%

South Korea: 38% North Korea: 56% Taiwan: 58% Northern Mariana Islands: 58% Guam: 46%

Source: Numbeo

Chiba

Thursday, August 27, 2026 at 10:00 AM

PM2,5 18 (Moderate)

particulate matter (PM2.5) dust

PM10 22 (Moderate)

particulate matter (PM10) suspended dust

O3 24 (Good)

ozone (O3)

NO2 29 (Good)

nitrogen dioxide (NO2)

SO2 24 (Good)

sulfur dioxide (SO2)

CO 337 (Good)

carbon monoxide (CO)

Chiba

index	2026-08-20	2026-08-21	2026-08-22	2026-08-23	2026-08-24	2026-08-25	2026-08-26	2026-08-27
pm25	14	13	23	16	19	11	12	20
pm10	17	16	25	18	19	13	14	22
o3	28	28	36	66	70	50	42	18
no2	30	28	39	31	39	26	31	46
so2	15	21	22	15	21	15	20	28
co	269	257	268	243	352	263	313	301

* Pollution data source: https://openaq.org () The data is licensed under CC-By 4.0

🌦️ Weather · 16-day Forecast — Japan

16-day weather forecast for Japan: today around 32°C (rain), lows near 21°C. Daily temperature and conditions, updated every day. Wind is light today (about 6 km/h) — pollutants can build up near the ground.

☀️ UV Index · 16-day Forecast — Japan

The UV index in Japan today is 7.1 (high) — unprotected fair skin can burn in about 30 minutes.

📍 Air quality in nearby cities

Live PM2.5 around Chiba — compare nearby locations.

Tokyo 30 µg/m³
Yokohama 30 µg/m³
Osaka City 8 µg/m³
Nagoya 17 µg/m³
Sapporo 6 µg/m³
Kōbe Shi 7 µg/m³
Kyoto 6 µg/m³
Fukuoka City 6 µg/m³

Frequently asked questions

Is the air safe to breathe in Chiba today?

The current average PM2.5 across Chiba is about 18 µg/m³, rated “Moderate”. Air quality is acceptable, but unusually sensitive people should limit prolonged outdoor exertion.

What is the current PM2.5 level in Chiba?

Right now PM2.5 in Chiba averages about 18 µg/m³ (“Moderate”). PM2.5 are fine particles small enough to reach the lungs and bloodstream.

Which day last week had the worst air in Chiba?

Over the past week, the highest daily PM2.5 in Chiba was recorded on Saturday, August 22 (about 23 µg/m³).

What is the UV index in Chiba today?

The UV index in Chiba today is 7.1 (high) — unprotected fair skin can burn in about 30 minutes.

Does today's wind help disperse smog in Chiba?

Wind is light today (about 6 km/h) — pollutants can build up near the ground.

How is air quality measured?

Air quality here is based on PM2.5 — the concentration of fine particulate matter in µg/m³. Lower values mean cleaner air. Data is updated daily from Open-Meteo.