TrueBreath - Smoke Equivalence Calculator - Boston

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

Boston'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.

With a PM2.5 level of 13.0 μg/m³, Boston'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.

The Real-Time Air Quality Index (AQI) in Boston is 53. This is considered Moderate. AQI values above 100 indicate unhealthy air quality, especially for sensitive groups.

The primary pollutant affecting Boston's air quality is O3. This pollutant is the main contributor to the current AQI of 53 and PM2.5 level of 13.0 μg/m³.

Boston's current PM10 level is 24.0 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.

The current ozone (O3) level in Boston is 25.6 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.

The nitrogen dioxide (NO2) level in Boston is currently 9.3 μg/m³. NO2 is primarily produced by vehicle emissions and industrial processes. High levels can worsen respiratory conditions and increase susceptibility to respiratory infections.