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TrueBreath - Smoke Equivalence Calculator - Shenzhen

Health

Check Shenzhen's air quality and see how many cigarettes worth of smoke you're breathing. Real-time PM2.5 data and health impact calculator.

The Hero Stat

Breathing air in Shenzhen (深圳) today =

Smoking 7.9 Cigarettes

Based on PM2.5 level: 174.0 μg/m³

The Math

Berkeley Earth Rule: 22 μg/m³ of PM2.5 ≈ 1 cigarette

Current PM2.5: 174.0 μg/m³

Calculation: 174.0 ÷ 22 = 7.91 cigarettes

Life Lost

You lost approx 1.4 hours of life expectancy today

Based on: 7.9 cigarettes × 11 minutes per cigarette

PM2.5 Level

Current PM2.5

174.0 μg/m³

WHO Safe Limit

15 μg/m³

11.6x above safe limit

Air Quality Details

AQI

224

Very Unhealthy

Main Pollutant

PM2.5

PM10

115.0

O3

38.6

Last updated: 1/12/2026, 9:00:00 PM

Most common question related to Shenzhen (深圳)'s Air Quality

How many cigarettes is Shenzhen (深圳)'s air equivalent to?

Breathing air in Shenzhen (深圳) is equivalent to smoking approximately 7.9 cigarettes per day, based on the current PM2.5 level of 174.0 μg/m³.

Is Shenzhen (深圳)'s air quality safe?

Shenzhen (深圳)'s current PM2.5 level is 174.0 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 Shenzhen (深圳)'s air quality pose?

With a PM2.5 level of 174.0 μg/m³, Shenzhen (深圳)'s air quality poses significant health risks, especially for sensitive groups. Prolonged exposure can lead to respiratory issues, cardiovascular problems, and reduced life expectancy.

What is the current AQI in Shenzhen (深圳)?

The Real-Time Air Quality Index (AQI) in Shenzhen (深圳) is 224. This is considered Very Unhealthy. AQI values above 100 indicate unhealthy air quality, especially for sensitive groups.

What is the main pollutant in Shenzhen (深圳)'s air?

The primary pollutant affecting Shenzhen (深圳)'s air quality is PM2.5. This pollutant is the main contributor to the current AQI of 224 and PM2.5 level of 174.0 μg/m³.

How does Shenzhen (深圳)'s PM10 level compare to PM2.5?

Shenzhen (深圳)'s current PM10 level is 115.0 μg/m³, while PM2.5 is 174.0 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 Shenzhen (深圳)?

The current ozone (O3) level in Shenzhen (深圳) is 38.6 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 Shenzhen (深圳)?

The nitrogen dioxide (NO2) level in Shenzhen (深圳) is currently 48.5 μg/m³. NO2 is primarily produced by vehicle emissions and industrial processes. High levels can worsen respiratory conditions and increase susceptibility to respiratory infections.

Shenzhen Air Quality: 7.9 Cigarettes/Day Equivalent