Smog in Delhi is already a topic of tension. Delhi is breathing poison due to the polluted air. Smog has deteriorated the air quality in the city, dropping it to a level that can cause breathing discomfort to people with asthma and heart diseases.

Chandigarh Pollution Control Committee on Wednesday night said the Air Quality Index (AQI) has plunged to a "very poor" level after measuring it in Sector 17, Imtech in Sector 39, and Kaimbwala. 

P J S Dadwal, member secretary, Chandigarh Pollution Control Committee said low wind velocity and the dry and cold season have aggravated the situation. "The quality of air deteriorating during this time of the year has become a norm in recent years," he said.

According to the meteorological department, the Tricity will experience moderate smog on Thursday and Friday. Visibility in Chandigarh has also come down from average.

"Surface winds from east are leading to an increase in moisture content in the air. With pollution adding to it, shallow fog is turning into smog. A slight relief is expected in Punjab and Haryana by next week," Chandigarh meteorological department director Surender Paul said, adding that western disturbances are also playing a role.

With more dust over Zirakpur and other areas of Chandigarh, Panchkula and Mohali, visibility there is lower than what it is in the city.

Photo courtesy- The Tribune