Air quality
Air quality in Lecheng today
Updated
Unhealthy (US AQI 163) Everyone should reduce prolonged or heavy exertion outdoors; sensitive groups should avoid it and keep windows closed. Model estimate for Mon, Oct 26, 9:00 am (01:00 UTC).
Live AQI, PM2.5, PM10 and ozone for Lecheng, Guangdong, China, with a 48-hour forecast and the best time to be outside.
- US AQI now
- 163 Unhealthy
- PM2.5
- 50 µg/m³ 3.4× WHO 24-h guideline
- PM10
- 52 µg/m³
- Ozone
- 60 µg/m³
- Dominant pollutant
- PM2.5 sub-index 163
- Best hour today
- 9:00 pm AQI 160
- European AQI
- 60
Air quality in Lecheng right now
Right now the modelled US Air Quality Index for Lecheng, Guangdong, China is 163, which falls in the "Unhealthy" band (up to 200). Everyone should reduce prolonged or heavy exertion outdoors; sensitive groups should avoid it and keep windows closed.
The index is driven mainly by PM2.5, whose own sub-index is 163. 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 50 µg/m³, 3.4 times the WHO 24-hour guideline of 15 µg/m³; PM10 is 52 µg/m³ against a guideline of 45; ozone is 60 µg/m³ (below the WHO 8-hour level of 100); nitrogen dioxide is 18 µg/m³ (below the 24-hour guideline of 25).
Also this hour: UV index 2.7, carbon monoxide 258 µg/m³.
Lecheng AQI forecast: next 48 hours
Over the next 24 hours the AQI is forecast to range from 154 around Tue 8:00 am to 163 around Mon 9:00 am, staying "Unhealthy" throughout.
The following day is expected to be cleaner, averaging about 150 against 160 for the next 24 hours.
| Local time (Asia/Shanghai) | US AQI | Category | PM2.5 µg/m³ | PM10 µg/m³ | Ozone µg/m³ |
|---|---|---|---|---|---|
| Mon 9:00 am | 163 | Unhealthy | 50.3 | 52 | 60 |
| Mon 12:00 pm | 162 | Unhealthy | 17.5 | 21 | 120 |
| Mon 3:00 pm | 162 | Unhealthy | 18.1 | 22 | 120 |
| Mon 6:00 pm | 161 | Unhealthy | 27 | 30 | 97 |
| Mon 9:00 pm | 160 | Unhealthy | 65.2 | 68 | 48 |
| Tue 12:00 am | 160 | Unhealthy | 100.1 | 103 | 20 |
| Tue 3:00 am | 159 | Unhealthy | 107.6 | 110 | 11 |
| Tue 6:00 am | 156 | Unhealthy | 96.6 | 99 | 16 |
| Tue 9:00 am | 154 | Unhealthy | 40 | 42 | 70 |
| Tue 12:00 pm | 153 | Unhealthy | 18.6 | 22 | 142 |
| Tue 3:00 pm | 153 | Unhealthy | 15.8 | 19 | 122 |
| Tue 6:00 pm | 153 | Unhealthy | 24.6 | 27 | 90 |
| Tue 9:00 pm | 153 | Unhealthy | 54.9 | 57 | 46 |
| Wed 12:00 am | 152 | Unhealthy | 72.2 | 73 | 29 |
| Wed 3:00 am | 146 | Unhealthy for Sensitive Groups | 81.3 | 82 | 20 |
| Wed 6:00 am | 140 | Unhealthy for Sensitive Groups | 85.9 | 86 | 12 |
| Wed 9:00 am | 136 | Unhealthy for Sensitive Groups | 52 | 53 | 55 |
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 Lecheng today
Between 6 am and 9 pm local time, the cleanest air today is forecast around 9:00 pm (AQI 160, Unhealthy) and the worst around 9:00 am (AQI 163). The difference across the day is small, so timing matters little.
Lecheng vs the rest of China
Across 447 China cities we track, the average US AQI right now is 86 (Moderate). Lecheng at 163 is 77 points worse than average.
For context, the median across 3,556 cities worldwide is 58.
Air quality in cities near Lecheng
| City | Distance | US AQI | Category | PM2.5 µg/m³ |
|---|---|---|---|---|
| Shaoguan | 43 km | 60 | Moderate | 13.4 |
| Maba | 55 km | 60 | Moderate | 13.4 |
| Chenzhou | 81 km | 137 | Unhealthy for Sensitive Groups | 60.8 |
| Qingyuan | 162 km | 59 | Moderate | 8.7 |
| Ganzhou | 178 km | 44 | Good | 10.7 |
| Hezhou | 197 km | 72 | Moderate | 24 |
| Heyuan | 206 km | 49 | Good | 7.7 |
| Hengyang | 209 km | 105 | Unhealthy for Sensitive Groups | 54.6 |
Model vs measured
We found no measured PM2.5 sensor cell within 25 km of Lecheng, 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 108 µg/m³ in the next 24 hours while NASA satellites detected 45 fire hotspots within 300 km in the last day (nearest about 50 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 163, 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 AQI | Category | What it means |
|---|---|---|
| 0-50 | Good | Air quality is satisfactory and poses little or no risk; a good time for outdoor activity. |
| 51-100 | Moderate | Acceptable for most people. Unusually sensitive people should consider shortening long or heavy exertion outdoors. |
| 101-150 | Unhealthy for Sensitive Groups | People with heart or lung disease, older adults, children and teens should cut back on prolonged or heavy exertion outdoors. |
| 151-200 | Unhealthy | Everyone should reduce prolonged or heavy exertion outdoors; sensitive groups should avoid it and keep windows closed. |
| 201-300 | Very Unhealthy | Health alert: everyone should avoid prolonged or heavy exertion outdoors, and sensitive groups should stay indoors. |
| 301-500 | Hazardous | Emergency 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 Lecheng
Air quality elsewhere
Data: Open-Meteo Air Quality API, Copernicus Atmosphere Monitoring Service (CAMS), NASA FIRMS.