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Air Quality Index (AQI) in Ürümqi, China 🇨🇳

🏆 Ürümqi ranks #1 for worst air quality now.

Air quality in Ürümqi is currently 322 on the US AQI scale, rated Hazardous.

Severe sandstorm
26°C
Severe sandstorm
AQI INDEX
322
US EPA Standard

PM 2.5 Level
246.8
µg/m³

Air Quality
Hazardous
The current Air Quality Index (AQI) in Ürümqi is recorded at 322 as of 3:32 AM local time this Friday, July 31, 2026. This real-time AQI score is estimated from the current PM2.5 concentration. According to the US EPA health standard, air quality in Ürümqi currently falls into the Hazardous category. High pollution levels have been detected, with PM2.5 reaching 246.8 µg/m³. This unhealthy AQI reading suggests that everyone may begin to experience health effects. Track the local weather and limit time outdoors until levels improve. For the AQI across entire China, you can also view the Air Quality Index for China covering other major urban centers and local monitoring stations.

Health Recommendations for Ürümqi Residents

😷

Health alert: everyone may begin to experience health effects. Members of sensitive groups should avoid all outdoor physical activity, and others should minimize time spent outside in Ürümqi.

Ürümqi Air Pollution: Detailed Pollutant Breakdown

⚠️🚬
Heads up: Ürümqi's air today is like smoking about 11.2 cigarettes. Limit time outdoors.
Based on the Berkeley Earth estimate that ~22 µg/m³ of PM2.5 over a day is about one cigarette. Today's PM2.5 in Ürümqi is 246.8 µg/m³.
PM 2.5
246.8
µg/m³
PM 10
1240.5
µg/m³
Nitrogen Dioxide (NO2)
29.0
µg/m³
Ozone (O3)
55.0
µg/m³
Carbon Monoxide (CO)
281.0
µg/m³
Sulfur Dioxide (SO2)
8.7
µg/m³

Current Weather in Ürümqi

🌡️ 26°C (Feels like 24°)
🌬️ 9 km/h NNW
💧 26% Humidity
🧭 1010 hPa
👁️ 1.2 km Visibility
☀️ UV Index: 4.1
🌅 Sunrise: 06:57 AM
🌇 Sunset: 09:34 PM
🌡️ Dew Point: 5°C

Ürümqi's Main Air Pollutant Today

The main concern in Ürümqi right now is PM10 at 1240.5 µg/m³, about 27.6x the WHO 24-hour guideline.

Air Quality Health Advice for Ürümqi

General publicEveryone should avoid outdoor exertion and stay indoors with windows shut.
Sensitive groupsSensitive groups should remain indoors and keep activity levels low.

Air Quality in Other Cities in China

Browse Air Quality in China by cities in alphabetical order:

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Air Quality in China ›

Frequently Asked Questions about Air Quality in Ürümqi

What is the air quality (AQI) in Ürümqi right now?

The current air quality index in Ürümqi is 322 — categorised as Hazardous.

Is the air in Ürümqi safe to breathe today?

Today's air quality in Ürümqi is rated Hazardous on the US EPA scale.

What is the PM2.5 level in Ürümqi right now?

The fine-particle (PM2.5) concentration in Ürümqi is currently 246.8 µg/m³. PM2.5 is the most health-relevant pollutant — the WHO 24-hour guideline is 15 µg/m³.

What is the PM10 level in Ürümqi right now?

The coarse-particle (PM10) concentration in Ürümqi is currently 1240.5 µg/m³.

What is the main pollutant in Ürümqi right now?

The dominant pollutant in Ürümqi right now is PM10 at 1240.5 µg/m³.

Is it safe to exercise outdoors in Ürümqi today?

Air quality in Ürümqi is Hazardous — sensitive groups should consider reducing prolonged outdoor exertion.

How to Read the Air Quality Index for Ürümqi

Good (0-50)

Air is fresh and healthy. Safe for all outdoor activities.

Moderate (51-100)

Acceptable air quality, though sensitive groups should monitor comfort.

Unhealthy (Sensitive) (101-150)

Vulnerable groups (children, elderly) should limit outdoor exertion.

Unhealthy (151-200)

Everyone begins to experience health effects. Stay indoors where possible.

Very Unhealthy (201-300)

Significant health impact for entire population. Emergency conditions.

Hazardous (301+)

Serious health alert: everyone may experience serious life-threatening effects.

Good (0-12)

Fine particles are at minimal, safe levels. Air is optimal.

Moderate (12-35)

Acceptable air, but haze may be present in urban areas.

Sensitive (35-55)

Individuals with heart or lung disease should limit activity.

Unhealthy (55-150)

Particulate levels high enough to cause respiratory irritation.

Very Unhealthy (150-250)

Heavy haze. High risk to cardiovascular health for the public.

Hazardous (250+)

Lethal particulate concentrations. Critical neurological and lung risk.

Good (0-54)

Low levels of dust and coarse particles. Environment is safe.

Moderate (55-154)

Coarse particles may trigger coughing in sensitive groups.

Sensitive (155-254)

Visible dust pollution. Sensitive groups should avoid heavy labor.

Unhealthy (255-354)

Widespread respiratory impacts likely for the population.

Very Unhealthy (355-424)

Dangerous dust and debris levels. Significant warnings issued.

Hazardous (425+)

Extremely high concentrations. Stay inside with filtration.

Good (0-54)

Surface ozone levels are within a safe, natural range.

Moderate (55-70)

Acceptable air, but sensitive individuals may feel chest tightness.

Sensitive (71-85)

Rising ozone can trigger airway inflammation in active children.

Unhealthy (86-105)

Avoid heavy outdoor work during the hottest part of the day.

Very Unhealthy (106-200)

Serious lung function reduction likely across the public.

Hazardous (201+)

Emergency ozone levels. Risk of permanent lung tissue damage.

Good (0-53)

Nitrogen levels are optimal. Safe for everyone.

Moderate (54-100)

Typical background levels for high-density urban areas.

Sensitive (101-360)

Increased risk of respiratory infections for vulnerable groups.

Unhealthy (361-649)

Significant airway inflammation likely near traffic zones.

Very Unhealthy (650-1249)

Acute respiratory distress potential. High-risk groups stay indoors.

Hazardous (1250+)

Toxic concentrations. Immediate health precautions required.

Good (0-4.4)

Carbon Monoxide levels are clean and non-toxic.

Moderate (4.5-9.4)

Acceptable; may affect those with specific heart conditions.

Sensitive (9.5-12.4)

Reduced oxygen delivery to the heart may occur.

Unhealthy (12.5-15.4)

Headaches and fatigue may occur in urban canyons.

Very Unhealthy (15.5-30.4)

Significant cardiovascular distress. Mental confusion possible.

Hazardous (30.5+)

Lethal potential. Immediate risk of neurological collapse.

Good (0-35)

Optimal air quality with no sulfur detection.

Moderate (36-75)

Acceptable air; minor odors possible near industry.

Sensitive (76-185)

Bronchoconstriction possible for active asthmatics.

Unhealthy (186-304)

Respiratory distress likely for the wider population.

Very Unhealthy (305-604)

Significant wheezing and shortness of breath likely.

Hazardous (605+)

Extreme respiratory danger. Significant life risk.

Health & Scientific Resources

→ How to read US EPA Air Quality Index before going outside → Understanding Air Quality Index levels and what they mean → When haze forms and what it does to air quality

How is this AQI calculated?

The primary Air Quality Index (AQI) shown above is calculated using the US EPA Linear Interpolation formula based on PM2.5 concentration (Fine Particulate Matter).

Formula: Ip = [(Ihi - Ilow) / (Chi - Clow)] * (Cp - Clow) + Ilow
Current Conditions Explained

Is the AQI in Ürümqi safe today?

Today's AQI is 322, which is categorized as Hazardous. This means the air quality is hazardous for the general population.