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TrueBreath - Smoke Equivalence Calculator - Philadelphia

Health

Check Philadelphia'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 NewJersey, USA today =

Smoking 1.8 Cigarettes

Based on PM2.5 level: 40.0 μg/m³

The Math

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

Current PM2.5: 40.0 μg/m³

Calculation: 40.0 ÷ 22 = 1.82 cigarettes

Life Lost

You lost approx 0.3 hours of life expectancy today

Based on: 1.8 cigarettes × 11 minutes per cigarette

PM2.5 Level

Current PM2.5

40.0 μg/m³

WHO Safe Limit

15 μg/m³

2.7x above safe limit

Air Quality Details

AQI

112

Unhealthy for Sensitive Groups

Main Pollutant

PM2.5

PM10

0.0

O3

21.6

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

Most common question related to NewJersey, USA's Air Quality

How many cigarettes is NewJersey, USA's air equivalent to?

Breathing air in NewJersey, USA is equivalent to smoking approximately 1.8 cigarettes per day, based on the current PM2.5 level of 40.0 μg/m³.

Is NewJersey, USA's air quality safe?

NewJersey, USA's current PM2.5 level is 40.0 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 NewJersey, USA's air quality pose?

With a PM2.5 level of 40.0 μg/m³, NewJersey, USA'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 NewJersey, USA?

The Real-Time Air Quality Index (AQI) in NewJersey, USA is 112. This is considered Unhealthy for Sensitive Groups. AQI values above 100 indicate unhealthy air quality, especially for sensitive groups.

What is the main pollutant in NewJersey, USA's air?

The primary pollutant affecting NewJersey, USA's air quality is PM2.5. This pollutant is the main contributor to the current AQI of 112 and PM2.5 level of 40.0 μg/m³.

How does NewJersey, USA's PM10 level compare to PM2.5?

NewJersey, USA's current PM10 level is 0.0 μg/m³, while PM2.5 is 40.0 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 NewJersey, USA?

The current ozone (O3) level in NewJersey, USA is 21.6 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 NewJersey, USA?

The nitrogen dioxide (NO2) level in NewJersey, USA is currently 7.5 μg/m³. NO2 is primarily produced by vehicle emissions and industrial processes. High levels can worsen respiratory conditions and increase susceptibility to respiratory infections.

Philadelphia Air Quality: 1.8 Cigarettes/Day Equivalent