Guwahati, April 25 -- Byrnihat, once declared the most polluted city in the world in February 2025, has made remarkable progress in improving its air quality.

Recent reports indicate that the city's average Air Quality Index (AQI) has dropped to the 'moderate' category, signaling a significant shift from the previously dangerous levels of pollution.

In response to the alarming pollution levels, the Meghalaya State Pollution Control Board (MSPCB) launched a series of surprise inspections and environmental audits of industries in Byrnihat and surrounding areas in March.

This move came after Chief Minister Conrad K Sangma ordered immediate regulatory intervention and coordinated with the Assam government to monitor industrial activities o...