Air quality

Air quality in Tongshan today

Updated

Unhealthy for Sensitive Groups (US AQI 138) 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, 9:00 am (01:00 UTC).

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

US AQI now
138 Unhealthy for Sensitive Groups
PM2.5
51 µg/m³ 3.4× WHO 24-h guideline
PM10
54 µg/m³
Ozone
36 µg/m³
Dominant pollutant
PM2.5 sub-index 138
Best hour today
9:00 am AQI 138
European AQI
60

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Air quality in Tongshan right now

Right now the modelled US Air Quality Index for Tongshan, Jiangsu, China is 138, 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 138. 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 51 µg/m³, 3.4 times the WHO 24-hour guideline of 15 µg/m³; PM10 is 54 µg/m³ against a guideline of 45; ozone is 36 µg/m³ (below the WHO 8-hour level of 100); nitrogen dioxide is 28 µg/m³ (above the 24-hour guideline of 25).

Also this hour: UV index 2.1, carbon monoxide 679 µg/m³.

Tongshan AQI forecast: next 48 hours

Over the next 24 hours the AQI is forecast to range from 130 around Tue 9:00 am to 154 around Mon 7:00 pm, from "Unhealthy for Sensitive Groups" at best to "Unhealthy" at worst.

The following day is expected to be cleaner, averaging about 113 against 146 for the next 24 hours.

Local time (Asia/Shanghai)US AQICategoryPM2.5 µg/m³PM10 µg/m³Ozone µg/m³
Mon 9:00 am138Unhealthy for Sensitive Groups50.95436
Mon 12:00 pm143Unhealthy for Sensitive Groups37.84094
Mon 3:00 pm150Unhealthy for Sensitive Groups51.95468
Mon 6:00 pm153Unhealthy62.66410
Mon 9:00 pm154Unhealthy51.8540
Tue 12:00 am151Unhealthy49.9530
Tue 3:00 am145Unhealthy for Sensitive Groups40.9440
Tue 6:00 am138Unhealthy for Sensitive Groups38.4421
Tue 9:00 am130Unhealthy for Sensitive Groups38.84620
Tue 12:00 pm126Unhealthy for Sensitive Groups23.24155
Tue 3:00 pm120Unhealthy for Sensitive Groups24.43649
Tue 6:00 pm111Unhealthy for Sensitive Groups46.15316
Tue 9:00 pm108Unhealthy for Sensitive Groups49.5590
Wed 12:00 am107Unhealthy for Sensitive Groups44.6571
Wed 3:00 am105Unhealthy for Sensitive Groups35462
Wed 6:00 am104Unhealthy for Sensitive Groups32.8446
Wed 9:00 am101Unhealthy for Sensitive Groups31.14630

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 Tongshan today

Between 6 am and 9 pm local time, the cleanest air today is forecast around 9:00 am (AQI 138, Unhealthy for Sensitive Groups) and the worst around 7:00 pm (AQI 154). That is a swing of 16 points, so a run or walk around 9:00 am is noticeably better.

Tongshan vs the rest of China

Across 467 China cities we track, the average US AQI right now is 86 (Moderate). Tongshan at 138 is 52 points worse than average.

It ranks 451 of 467 from cleanest to most polluted; the cleanest is Hulunbuir (19) and the most polluted Artux (227).

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

Air quality in cities near Tongshan

CityDistanceUS AQICategoryPM2.5 µg/m³
Yunlong12 km156Unhealthy59.8
Xuzhou12 km156Unhealthy59.8
Huaibei41 km151Unhealthy71
Suzhou, Anhui63 km120Unhealthy for Sensitive Groups56.8
Pizhou74 km90Moderate24.8
Zaozhuang84 km96Moderate34.8
Chengtangcun100 km136Unhealthy for Sensitive Groups55.5
Suqian108 km87Moderate24.8

Model vs measured

We found no measured PM2.5 sensor cell within 25 km of Tongshan, 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 63 µg/m³ in the next 24 hours while NASA satellites detected 101 fire hotspots within 300 km in the last day (nearest about 24 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 138, 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 Tongshan

Air quality elsewhere

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