Punjab Smog Crisis: Causes & Personal Safety Measures
The Punjab smog season typically emerges between late October and mid-January. A combination of factors converges to create severe particulate pollution: post-monsoon agricultural stubble burning across transboundary agricultural corridors, low surface wind velocities (< 5 km/h), vehicular tailpipe emissions, brick kiln operations, and meteorological temperature inversions where cold dense air traps airborne pollutants close to street level.
During elevated PM2.5 conditions (> 150 µg/m³), health authorities recommend:
- Wearing certified N95 or KN95 particulate respirators when commuting outdoors.
- Operating HEPA air filtration units inside living and sleeping spaces.
- Avoiding early morning outdoor jogs or intense athletic exercises when surface inversion is thickest.
- Keeping home windows and doors sealed during peak traffic hours.
Smog & Air Quality FAQs
Fog is natural condensed atmospheric water vapor that dissipates as temperatures rise. Smog (smoke + fog) is a hazardous cocktail of chemical gases (nitrogen oxides, sulfur dioxide, ozone) and particulate matter (PM2.5 and PM10) that creates stinging eyes, respiratory distress, and reduced visibility.
PM2.5 particles are less than 2.5 micrometers in aerodynamic diameter — approximately 3% the width of a human hair. Because of their tiny size, they bypass nasal cilia, penetrate deep into alveolar lung tissues, and can enter the cardiovascular bloodstream.