The Hero Stat
Breathing air in Beijing (北京) today =
Smoking 1.4 Cigarettes
Based on PM2.5 level: 30.0 μg/m³
The Math
Berkeley Earth Rule: 22 μg/m³ of PM2.5 ≈ 1 cigarette
Current PM2.5: 30.0 μg/m³
Calculation: 30.0 ÷ 22 = 1.36 cigarettes
Life Lost
You lost approx 0.2 hours of life expectancy today
Based on: 1.4 cigarettes × 11 minutes per cigarette
PM2.5 Level
Current PM2.5
30.0 μg/m³
WHO Safe Limit
15 μg/m³
2.0x above safe limit
Air Quality Details
AQI
89
Moderate
Main Pollutant
PM10
PM10
54.0
O3
34.6
Last updated: 4/3/2026, 8:00:00 AM
Most common question related to Beijing (北京)'s Air Quality
How many cigarettes is Beijing (北京)'s air equivalent to?
Breathing air in Beijing (北京) is equivalent to smoking approximately 1.4 cigarettes per day, based on the current PM2.5 level of 30.0 μg/m³.
Is Beijing (北京)'s air quality safe?
Beijing (北京)'s current PM2.5 level is 30.0 μg/m³. The WHO safe limit is 15 μg/m³ for 24-hour exposure. This exceeds the safe limit and poses health risks.
What health risks does Beijing (北京)'s air quality pose?
With a PM2.5 level of 30.0 μg/m³, Beijing (北京)'s air quality may cause minor health issues, particularly for people with respiratory conditions. It's advisable to limit outdoor activities during high pollution periods.
What is the current AQI in Beijing (北京)?
The Real-Time Air Quality Index (AQI) in Beijing (北京) is 89. This is considered Moderate. AQI values above 100 indicate unhealthy air quality, especially for sensitive groups.
What is the main pollutant in Beijing (北京)'s air?
The primary pollutant affecting Beijing (北京)'s air quality is PM10. This pollutant is the main contributor to the current AQI of 89 and PM2.5 level of 30.0 μg/m³.
How does Beijing (北京)'s PM10 level compare to PM2.5?
Beijing (北京)'s current PM10 level is 54.0 μg/m³, while PM2.5 is 30.0 μg/m³. PM10 particles are larger (2.5-10 micrometers) and less harmful than PM2.5, which can penetrate deep into the lungs and bloodstream.
What is the ozone (O3) level in Beijing (北京)?
The current ozone (O3) level in Beijing (北京) is 34.6 μg/m³. Ozone is a harmful gas that can cause respiratory problems, especially during physical activity. The WHO guideline for 8-hour exposure is 100 μg/m³.
What are the nitrogen dioxide (NO2) levels in Beijing (北京)?
The nitrogen dioxide (NO2) level in Beijing (北京) is currently 2.8 μg/m³. NO2 is primarily produced by vehicle emissions and industrial processes. High levels can worsen respiratory conditions and increase susceptibility to respiratory infections.
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