Air quality

Air quality in Chenzhou today

Updated

Unhealthy for Sensitive Groups (US AQI 120) People with heart or lung disease, older adults, children and teens should cut back on prolonged or heavy exertion outdoors. Model estimate for Mon, Oct 26, 4:00 am (20:00 UTC).

Live AQI, PM2.5, PM10 and ozone for Chenzhou, Hunan, China, with a 48-hour forecast and the best time to be outside.

US AQI now
120 Unhealthy for Sensitive Groups
PM2.5
100 µg/m³ 6.7× WHO 24-h guideline
PM10
101 µg/m³
Ozone
27 µg/m³
Dominant pollutant
PM2.5 sub-index 120
Best hour today
6:00 am AQI 126
European AQI
84

Open on the live map

Air quality in Chenzhou right now

Right now the modelled US Air Quality Index for Chenzhou, Hunan, China is 120, which falls in the "Unhealthy for Sensitive Groups" band (up to 150). People with heart or lung disease, older adults, children and teens should cut back on prolonged or heavy exertion outdoors.

The index is driven mainly by PM2.5, whose own sub-index is 120. Fine and coarse particles come from traffic, heating, industry, dust and smoke; they build up on calm nights and clear when wind or rain arrives.

PM2.5 is 100 µg/m³, 6.7 times the WHO 24-hour guideline of 15 µg/m³; PM10 is 101 µg/m³ against a guideline of 45; ozone is 27 µg/m³ (below the WHO 8-hour level of 100); nitrogen dioxide is 42 µg/m³ (above the 24-hour guideline of 25).

Also this hour: carbon monoxide 582 µg/m³.

Chenzhou AQI forecast: next 48 hours

Over the next 24 hours the AQI is forecast to range from 120 around Mon 4:00 am to 143 around Mon 1:00 pm, staying "Unhealthy for Sensitive Groups" throughout.

The following day is expected to be cleaner, averaging about 104 against 138 for the next 24 hours.

Local time (Asia/Shanghai)US AQICategoryPM2.5 µg/m³PM10 µg/m³Ozone µg/m³
Mon 4:00 am120Unhealthy for Sensitive Groups99.910127
Mon 7:00 am128Unhealthy for Sensitive Groups111.111235
Mon 10:00 am140Unhealthy for Sensitive Groups46.247106
Mon 1:00 pm143Unhealthy for Sensitive Groups18.620136
Mon 4:00 pm143Unhealthy for Sensitive Groups14.516128
Mon 7:00 pm143Unhealthy for Sensitive Groups22.52493
Mon 10:00 pm142Unhealthy for Sensitive Groups39.14068
Tue 1:00 am139Unhealthy for Sensitive Groups50.35252
Tue 4:00 am130Unhealthy for Sensitive Groups55.65741
Tue 7:00 am115Unhealthy for Sensitive Groups60.36245
Tue 10:00 am103Unhealthy for Sensitive Groups24.626108
Tue 1:00 pm99Moderate15.218135
Tue 4:00 pm99Moderate13.516128
Tue 7:00 pm99Moderate19.120111
Tue 10:00 pm97Moderate37.43872
Wed 1:00 am98Moderate61.26243
Wed 4:00 am101Unhealthy for Sensitive Groups71.57222

Every third hour of the CAMS forecast via Open-Meteo. US AQI uses rolling averages (24 h for particles, 8 h for ozone), so it moves more slowly than the hourly concentrations.

Best time to be outside in Chenzhou today

Between 6 am and 9 pm local time, the cleanest air today is forecast around 6:00 am (AQI 126, Unhealthy for Sensitive Groups) and the worst around 1:00 pm (AQI 143). That is a swing of 17 points, so a run or walk around 6:00 am is noticeably better.

Chenzhou vs the rest of China

Across 447 China cities we track, the average US AQI right now is 84 (Moderate). Chenzhou at 120 is 36 points worse than average.

It ranks 384 of 447 from cleanest to most polluted; the cleanest is Baicheng (19) and the most polluted Kashgar (250).

For context, the median across 3,556 cities worldwide is 58.

Air quality in cities near Chenzhou

CityDistanceUS AQICategoryPM2.5 µg/m³
Shaoguan124 km65Moderate17.8
Hengyang128 km105Unhealthy for Sensitive Groups54.1
Maba136 km65Moderate17.8
Wuxi, Hunan146 km119Unhealthy for Sensitive Groups58.2
Yongzhou158 km121Unhealthy for Sensitive Groups56.2
Ganzhou190 km52Moderate9
Hezhou214 km72Moderate22.7
Pingxiang218 km82Moderate27.1

Model vs measured

We found no measured PM2.5 sensor cell within 25 km of Chenzhou, so the numbers on this page are model estimates. Models capture regional pollution well but can miss very local sources such as a busy road or a nearby fire.

Wildfire smoke

PM2.5 is forecast to reach 111 µg/m³ in the next 24 hours while NASA satellites detected 35 fire hotspots within 300 km in the last day (nearest about 138 km away). Smoke is a likely contributor: keep windows closed, run an air purifier or HVAC filter, and check the fire map before heading out.

Advice for sensitive groups

At 120, children, older adults, pregnant people and anyone with asthma, COPD or heart disease should limit time outdoors, especially strenuous activity. A well-fitted N95/FFP2 mask cuts particle exposure; it does not filter ozone.

What the US AQI numbers mean

US AQICategoryWhat it means
0-50GoodAir quality is satisfactory and poses little or no risk; a good time for outdoor activity.
51-100ModerateAcceptable for most people. Unusually sensitive people should consider shortening long or heavy exertion outdoors.
101-150Unhealthy for Sensitive GroupsPeople with heart or lung disease, older adults, children and teens should cut back on prolonged or heavy exertion outdoors.
151-200UnhealthyEveryone should reduce prolonged or heavy exertion outdoors; sensitive groups should avoid it and keep windows closed.
201-300Very UnhealthyHealth alert: everyone should avoid prolonged or heavy exertion outdoors, and sensitive groups should stay indoors.
301-500HazardousEmergency conditions: everyone should avoid all outdoor physical activity and stay indoors with filtered air if possible. The scale tops out at 500; heavier dust or smoke is shown as 500.

Values on this page are modelled by CAMS (Copernicus) and served by Open-Meteo; they are estimates for the area around the city centre, not readings from an official monitor.

Nearby cities

More for Chenzhou

Air quality elsewhere

Data: Open-Meteo Air Quality API, Copernicus Atmosphere Monitoring Service (CAMS), NASA FIRMS.