Understanding Air Quality

Air quality refers to the condition of the air within our surroundings. It is an important factor that affects human health and environmental quality. Pollutants such as particulate matter (PM2.5, PM10), ozone (O3), nitrogen dioxide (NO2), sulfur dioxide (SO2), and carbon monoxide (CO) can degrade air quality and cause health problems.

Common Air Pollutants

Particulate Matter (PM): Tiny particles suspended in the air that can penetrate the lungs and bloodstream.
Ozone (O3): A gas formed when pollutants react in sunlight, harmful near ground level.
Nitrogen Dioxide (NO2): Produced from vehicle emissions and industrial activity.
Sulfur Dioxide (SO2): Emitted from burning fossil fuels and industrial processes.
Carbon Monoxide (CO): A colorless, odorless gas from incomplete combustion.

Air Quality Index (AQI) Levels

The AQI is a standardized scale that indicates how clean or polluted the air is, and what associated health effects might be a concern.

0-50
Good

51-100
Moderate

101-150
Unhealthy
for Sensitive Groups

151-200
Unhealthy

201-300
Very Unhealthy

301-500
Hazardous

Protecting Yourself

When air quality is poor, sensitive individuals such as children, elderly, and those with respiratory or heart conditions should limit outdoor activity. Using air purifiers indoors, avoiding heavy traffic areas, and monitoring local air quality reports can help minimize exposure.