Delhi overtakes Lahore as world's most polluted city

New Delhi has emerged as the most polluted major city in the world, overtaking Lahore in Pakistan. The capital is currently experiencing dangerous air quality conditions accompanied by significant reductions in visibility due to widespread smog.

Air quality index readings vary

The Swiss monitoring group IQAir reported that Delhi’s Air Quality Index reached 334, a level classified as "dangerous." This reading places the Indian capital at the top of global pollution rankings among major cities. According to the agency, which measures air quality based on toxin concentrations, an index value up to 50 indicates good air quality with minimal or no health risks.

In contrast, India’s Central Pollution Control Board recorded a higher index value of 403 for the same period, categorizing the situation as "severely polluted." The discrepancy between the Swiss and Indian figures stems from differences in the methodologies and scales used to calculate and classify air pollution levels.

Authorities deploy anti-smog measures

To combat the deteriorating conditions, Indian authorities have deployed specialized equipment mounted on trucks. These devices spray water into the atmosphere in an effort to mitigate air pollution levels across the city.

Pollution remains a seasonal challenge for many parts of northern India and neighboring Pakistan. During winter months, cold and heavy air traps emissions from vehicles, construction dust, and smoke generated by the burning of agricultural crop residues.