Kolkata, the seventh-largest city in India, is currently dealing with an acute problem of air pollution. India’s Central Pollution Control Board has consistently rated the city’s air quality as “poor” to “dangerous.” The air pollution situation in Kolkata is one of the worst in India and the world. According to the World Air Quality Index (WAQI), Kolkata’s annual average PM2.5 levels in 2022 were 84 micrograms per cubic meter (µg/m³), which is more than three times the World Health Organisation’s safety limit of 25 µg/m³. This means that air quality is harmful to the entire population. People with respiratory diseases … Continue reading Kolkata Confronts Air Pollution Crisis: A Close Look at the Urban Air Quality Dilemma