Air quality

Air quality in Heze today

Updated

Unhealthy for Sensitive Groups (US AQI 129) 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, 2:00 am (18:00 UTC).

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

US AQI now
129 Unhealthy for Sensitive Groups
PM2.5
52 µg/m³ 3.5× WHO 24-h guideline
PM10
53 µg/m³
Ozone
0 µg/m³
Dominant pollutant
PM2.5 sub-index 129
Best hour today
7:00 pm AQI 115
European AQI
61

Open on the live map

Air quality in Heze right now

Right now the modelled US Air Quality Index for Heze, Shandong, China is 129, 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 129. 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 52 µg/m³, 3.5 times the WHO 24-hour guideline of 15 µg/m³; PM10 is 53 µg/m³ against a guideline of 45; ozone is 0 µg/m³ (below the WHO 8-hour level of 100); nitrogen dioxide is 58 µg/m³ (above the 24-hour guideline of 25).

Also this hour: carbon monoxide 713 µg/m³.

Heze AQI forecast: next 48 hours

Over the next 24 hours the AQI is forecast to range from 115 around Mon 7:00 pm to 133 around Mon 6:00 am, staying "Unhealthy for Sensitive Groups" throughout.

The following day is expected to be cleaner, averaging about 116 against 124 for the next 24 hours.

Local time (Asia/Shanghai)US AQICategoryPM2.5 µg/m³PM10 µg/m³Ozone µg/m³
Mon 2:00 am129Unhealthy for Sensitive Groups52.2530
Mon 5:00 am132Unhealthy for Sensitive Groups47.4480
Mon 8:00 am133Unhealthy for Sensitive Groups38.2404
Mon 11:00 am126Unhealthy for Sensitive Groups33.1368
Mon 2:00 pm121Unhealthy for Sensitive Groups30.23617
Mon 5:00 pm117Unhealthy for Sensitive Groups31.73817
Mon 8:00 pm115Unhealthy for Sensitive Groups57.3630
Mon 11:00 pm120Unhealthy for Sensitive Groups65.2710
Tue 2:00 am123Unhealthy for Sensitive Groups49.4540
Tue 5:00 am121Unhealthy for Sensitive Groups42460
Tue 8:00 am121Unhealthy for Sensitive Groups41.1467
Tue 11:00 am121Unhealthy for Sensitive Groups303529
Tue 2:00 pm119Unhealthy for Sensitive Groups22.33148
Tue 5:00 pm116Unhealthy for Sensitive Groups212935
Tue 8:00 pm111Unhealthy for Sensitive Groups29369
Tue 11:00 pm101Unhealthy for Sensitive Groups32.8408
Wed 2:00 am95Moderate34.5423

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 Heze today

Between 6 am and 9 pm local time, the cleanest air today is forecast around 7:00 pm (AQI 115, Unhealthy for Sensitive Groups) and the worst around 6:00 am (AQI 133). That is a swing of 18 points, so a run or walk around 7:00 pm is noticeably better.

Heze vs the rest of China

Across 467 China cities we track, the average US AQI right now is 84 (Moderate). Heze at 129 is 45 points worse than average.

It ranks 415 of 467 from cleanest to most polluted; the cleanest is Hulunbuir (21) and the most polluted Artux (264).

For context, the median across 3,909 cities worldwide is 57.

Air quality in cities near Heze

CityDistanceUS AQICategoryPM2.5 µg/m³
Puyang Chengguanzhen66 km154Unhealthy54.7
Puyang, Henan69 km154Unhealthy54.7
Shangqiu93 km125Unhealthy for Sensitive Groups47.4
Jining102 km131Unhealthy for Sensitive Groups58.9
Kaifeng117 km157Unhealthy59.8
Hebi121 km162Unhealthy65.4
Yanzhou128 km135Unhealthy for Sensitive Groups61.9
Zoucheng137 km135Unhealthy for Sensitive Groups61.9

Model vs measured

We found no measured PM2.5 sensor cell within 25 km of Heze, 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 67 µg/m³ in the next 24 hours while NASA satellites detected 24 fire hotspots within 300 km in the last day (nearest about 141 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 129, 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 Heze

Air quality elsewhere

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