The AQI to Cigarette Calculator works by converting Air Quality Index (AQI) measurements into an equivalent number of cigarettes smoked, helping people understand air pollution impact in more relatable terms. Here’s how it works:

1. Input Collection: Users enter an AQI value into the calculator.
2. Conversion Formula: The calculator uses a simplified conversion formula based on research comparing PM2.5 exposure from air pollution to cigarette smoke. The formula uses the approximation that an AQI of 22 for a 24-hour period is roughly equivalent to smoking one cigarette in terms of PM2.5 exposure.
3. Calculation: The entered AQI value is divided by 22 to determine the cigarette equivalent. For example:
   • AQI of 22 ≈ 1 cigarette
   • AQI of 44 ≈ 2 cigarettes
   • AQI of 150 ≈ 6.8 cigarettes
4. Result Display: The calculator displays:
   • The number of equivalent cigarettes (with one decimal place precision)
   • Visual representation using cigarette icons (🚬)
   • The corresponding AQI category (Good, Moderate, Unhealthy, etc.)
5. AQI Category Classification:
   • 0-50: Good
   • 51-100: Moderate
   • 101-150: Unhealthy for Sensitive Groups
   • 151-200: Unhealthy
   • 201-300: Very Unhealthy
   • 301+: Hazardous

This calculator provides a simplified estimate and is meant for informational purposes to help visualize air pollution risks in a more familiar context. The actual health impacts of air pollution compared to smoking can vary based on many factors, but this tool offers a helpful perspective on pollution severity.