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TrueBreath - Smoke Equivalence Calculator - Tokyo

Health

Check Tokyo'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 Meguro (目黒) today =

Smoking 0.6 Cigarettes

Based on PM2.5 level: 13.0 μg/m³

The Math

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

Current PM2.5: 13.0 μg/m³

Calculation: 13.0 ÷ 22 = 0.59 cigarettes

Life Lost

You lost approx 0.1 hours of life expectancy today

Based on: 0.6 cigarettes × 11 minutes per cigarette

PM2.5 Level

Current PM2.5

13.0 μg/m³

WHO Safe Limit

15 μg/m³

0.9x below safe limit

Air Quality Details

AQI

31

Good

Main Pollutant

O3

PM10

2.0

O3

31.2

Last updated: 1/8/2026, 9:00:00 PM

Most common question related to Meguro (目黒)'s Air Quality

How many cigarettes is Meguro (目黒)'s air equivalent to?

Breathing air in Meguro (目黒) is equivalent to smoking approximately 0.6 cigarettes per day, based on the current PM2.5 level of 13.0 μg/m³.

Is Meguro (目黒)'s air quality safe?

Meguro (目黒)'s current PM2.5 level is 13.0 μg/m³. The WHO safe limit is 15 μg/m³ for 24-hour exposure. This is within acceptable limits, but long-term exposure should still be minimized.

What health risks does Meguro (目黒)'s air quality pose?

With a PM2.5 level of 13.0 μg/m³, Meguro (目黒)'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 Meguro (目黒)?

The Real-Time Air Quality Index (AQI) in Meguro (目黒) is 31. This is considered Good. AQI values above 100 indicate unhealthy air quality, especially for sensitive groups.

What is the main pollutant in Meguro (目黒)'s air?

The primary pollutant affecting Meguro (目黒)'s air quality is O3. This pollutant is the main contributor to the current AQI of 31 and PM2.5 level of 13.0 μg/m³.

How does Meguro (目黒)'s PM10 level compare to PM2.5?

Meguro (目黒)'s current PM10 level is 2.0 μg/m³, while PM2.5 is 13.0 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 Meguro (目黒)?

The current ozone (O3) level in Meguro (目黒) is 31.2 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 Meguro (目黒)?

The nitrogen dioxide (NO2) level in Meguro (目黒) is currently 8.4 μg/m³. NO2 is primarily produced by vehicle emissions and industrial processes. High levels can worsen respiratory conditions and increase susceptibility to respiratory infections.

Tokyo Air Quality: 0.6 Cigarettes/Day Equivalent