AQI to Cigarette Calculator
Understand how air pollution affects your health by comparing Air Quality Index (AQI) values to the equivalent number of cigarettes smoked per day.
AQI Reference Guide
Understanding Air Quality Index categories and their health implications:
| AQI Range | Category | Health Impact | Typical Cigarette Equivalent |
|---|---|---|---|
| 0-50 | Good | Satisfactory air quality | 0-0.5 cigarettes/day |
| 51-100 | Moderate | Acceptable for most people | 0.5-1.5 cigarettes/day |
| 101-150 | Unhealthy for Sensitive Groups | Sensitive individuals may be affected | 1.5-2.5 cigarettes/day |
| 151-200 | Unhealthy | Health effects for general public | 2.5-6 cigarettes/day |
| 201-300 | Very Unhealthy | Serious health effects for everyone | 6-10 cigarettes/day |
| 301-500 | Hazardous | Emergency conditions, health warnings | 10+ cigarettes/day |
How the Calculation Works
1. AQI to PM2.5 Conversion
We convert the AQI value to PM2.5 concentration (μg/m³) using the official EPA formula for each AQI category range.
2. Scientific Research Basis
Based on research showing that 22 μg/m³ of PM2.5 exposure for 24 hours is equivalent to smoking one cigarette.
3. Health Impact Comparison
The calculation provides a relatable comparison to help understand the health impact of air pollution exposure.
Key Research References:
- Pope et al. (2002): "Lung cancer, cardiopulmonary mortality, and long-term exposure to fine particulate air pollution"
- Arden Pope & Douglas Dockery (2006): "Health Effects of Fine Particulate Air Pollution"
- World Health Organization (2021): "WHO global air quality guidelines"
Note: This is an approximation tool for educational purposes. Individual health impacts vary based on many factors including age, health conditions, duration of exposure, and individual sensitivity.
Take Action for Healthier Air
Learn more about protecting yourself from air pollution and improving air quality.