Lahore Tops Global Air Pollution Charts Amid Intense Smog
Air pollution in Punjab has reached severe levels, especially in Lahore, which has once again been named the most polluted city in the world due to thick smog. The overall Air Quality Index (AQI) in Lahore has surpassed 1,000, indicating dangerously high pollution levels across the city. Key areas include:
- DHA: AQI of 1,853
- Liberty Chowk: AQI of 1,208
- Shimla Hill: AQI of 1,007
This pollution is causing breathing issues and eye irritation among residents. Medical experts advise wearing masks when stepping outside to reduce exposure.
Global Rankings in Pollution
Lahore’s smog levels are significantly higher than other cities struggling with pollution:
- Kolkata, India: AQI of 311
- Delhi, India: AQI of 258
What Is Smog and How Does It Form?
Smog is a mix of smoke and fog, commonly found in densely populated and industrial areas. It is composed of pollutants like nitrogen oxides, sulfur oxides, ozone, and carbon monoxide.
Formation Process:
- Smog forms when pollutants interact with sunlight and heat, resulting in a chemical reaction in the atmosphere.
- The phenomenon is exacerbated in winter due to low wind speeds and temperature inversion, which trap pollutants near the ground.
Common Sources:
- Emissions from petrol and diesel vehicles
- Industrial activities
- Crop burning in nearby areas
Preventive Measures for Smog
To minimize health risks during periods of high smog:
- Stay Indoors: Avoid going outside when pollution levels are high.
- Wear Masks: Use face masks if you need to go out.
- Avoid Exercise: Refrain from outdoor physical activity, especially midday when smog is heaviest.
- Take Precautions for Respiratory Issues: Keep asthma inhalers accessible and consult a doctor if symptoms worsen.
For those with respiratory issues who must go outside, avoid congested areas to reduce exposure to vehicle emissions.