LAHORE (Dunya News) - Lahore once again became the most polluted city of the world with the air quality index (AQI) level of 284 on Saturday.
The AQI was recorded at 231 in Karachi and people are struggling with the breathing problems there.
The AQI level of Indian capital New Delhi was recorded at 187.
Also Read: No letup in smog, Lahore still among most polluted cities in world According to the WHO, air pollution kills 4.2 million people around the world every year.
An AQI level of 400-500 impacts healthy people and is dangerous to those with existing diseases, while a level of 150-200 brings discomfort to people with asthma, lung and heart problems. Levels of 0-50 are considered good.
Read More: Lahore is once again most polluted city as AQI reaches 444
Meanwhile, smog is affecting the health of people, especially the elderly and the children in Lahore. The health experts have advised to wear the face masks while going outside.