Lanzhou Moderate

Lanzhou, Gansu

Updated: Sep 30, 2025, 9:00 PM

Moderate

Air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution.

Current Weather

-5.9°C

Temperature

94%

Humidity

1.4

mph wind

Slight snow

Conditions

Pollutant Breakdown

PM2.5

µg/m³ · Fine particles

PM10

µg/m³ · Coarse particles

—

Ozone

ppb · Ground-level ozone

17.9

NO₂

ppb · Nitrogen dioxide

2.6

SO₂

ppb · Sulfur dioxide

7.3

ppm · Carbon monoxide

Dominant pollutant: PM25

PM2.5 Forecast (next 7 days)

Mon

9/29

avg

Tue

9/30

avg

Wed

10/1

avg

Thu

10/2

avg

Fri

10/3

104

avg

Sat

10/4

156

avg

Sun

10/5

167

avg

Health Guidance

⚠️

Unusually sensitive people: Consider reducing prolonged outdoor exertion.

✅

General population: No restrictions for most people.

💨

Keep windows closed if AQI is Unhealthy or above. Use HEPA air purifiers indoors.

Data from: Gangsu Environmental Protection Agency (甘肃省生态环境厅), China National Urban air quality real-time publishing platform (全国城市空气质量实时发布平台), World Air Quality Index Project

Is the air safe in Lanzhou today?

The current Air Quality Index (AQI) in Lanzhou is 76, which is classified as "Moderate". Air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution.

The AQI scale runs from 0 to 500. Values of 0–50 are Good, 51–100 are Moderate, 101–150 are Unhealthy for Sensitive Groups, 151–200 are Unhealthy, 201–300 are Very Unhealthy, and 301–500 are Hazardous.

Air quality in Lanzhou, Gansu is monitored by local environmental agencies and reported through the World Air Quality Index project. Data is updated hourly and includes PM2.5, PM10, ozone, nitrogen dioxide, sulfur dioxide, and carbon monoxide.

AQI Scale Reference

0–50

Good

51–100

Moderate

101–150

Unhealthy for Sensitive Groups

151–200

Unhealthy

201–300

Very Unhealthy

301+

Hazardous