CLIMATE, ENVIRONMENT & PUBLIC HEALTH

Live City AQI to Cigarettes Smoked Equivalent Calculator

Convert your city's PM2.5 / AQI exposure into equivalent cigarettes smoked per day using the Berkeley Earth research formula.

USUnited States(USD)Calibrated Edition v2026.09.1
Select Jurisdiction / Currency
Benchmarks:
Delhi • 28°C • 55% humidity
180

Unhealthy

PM2.5: 95.0 µg/m³ • 19.0× WHO guideline

Breathing Delhi's Air Is Like Smoking

2.5cigarettes / day

76

per month

919

per year

46.0

packs/year

4 hours

Epidemiological Health & Exposure Impact

~202.3 days lost / yr

Estimated life expectancy reduction per year at this sustained exposure level.

Everyone should reduce prolonged outdoor exertion. Use N95 masks outdoors.

WHO guideline benchmark: annual PM2.5 < 5 µg/m³

Delhi: AQI 180 (Unhealthy). PM2.5: 95.0 µg/m³.

Everyone should reduce prolonged outdoor exertion. Use N95 masks outdoors.

Your city's PM2.5 is 19.0× the WHO annual guideline of 5 µg/m³.

Based on Berkeley Earth research: 22 µg/m³ PM2.5 = 1 cigarette/day.

⚠️ Consider investing in an air purifier (HEPA filter) for indoor spaces and wearing N95 masks outdoors.

Calibrate UC Berkeley / Lancet PM2.5 particulate mass per cigarette equivalent and indoor filtration efficiency.

µg/m³
%
Verified: 2026-09-29 • Config v2026.09.1

Statutory Formula & Editorial Methodology

Berkeley Earth research: 22 µg/m³ of PM2.5 exposure = 1 cigarette per day. Annual equivalent = (PM2.5 / 22) × exposure_hours/24 × 365.

Audited: 2026-09-29•Policy Spec v2026.09.1

Public Interest & Editorial Context

Understanding aqi ↔ cigarettes calculator is crucial for informed financial, economic, and policy decisions. This model uses verified data from official gazette sources, central banks, and research institutes to provide transparent computational insights. The underlying parameters are fully auditable — click the assumptions button above to inspect or adjust any rate or threshold.

❓ Frequently Asked Questions

How reliable is the cigarettes equivalent metric?

The 22 µg/m³ PM2.5 ≈ 1 cigarette equivalence is from Berkeley Earth and cited by WHO. It is an approximation for health communication — actual health impact depends on particle composition, individual physiology, and indoor vs outdoor exposure.

What is a safe AQI level?

WHO guidelines recommend annual PM2.5 below 5 µg/m³. AQI 0-50 is "Good", 51-100 is "Moderate", and above 150 is "Unhealthy". Many Indian cities routinely exceed 200+ AQI in winter.

Live City AQI to Cigarettes Smoked Equivalent Calculator — Free Online Tool