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Delhi's air quality slipped into the poor category as a heatwave and dust-laden winds gripped the city. Even so, CPCB data shows May 2026 has remained cleaner overall than several recent years.

The Indo-Gangetic Plain has experienced intense heating across its entire stretch. Dust has consequently been lifted on a much larger scale, with transport winds carrying it partly from the Indo-Gangetic region and partly from Rajasthan and adjoining desert areas towards Delhi. Delhi has found itself trapped between multiple dust corridors

Unlike geography or crop residue burning, this is an aspect of pollution over which the Delhi government cannot claim helplessness

Rapid urbanisation within the city has increased vehicular traffic and construction activities, while natural ecosystems that once helped cleanse the air have been steadily lost. Pollution and construction regulations are ineffective or poorly applied

AQI.in's live rankings placed 21 Indian cities among the world's 25 most polluted on Sunday. The list points to how heatwave conditions and PM2.5 pollution are worsening air quality beyond winter months in India.

The link between artificial light at night, street lights, light pollution, biodiversity destruction, nocturnal fauna, bats, insects, and birds is becoming more evident in modern environmental science. It has been suggested that too much light during the night not only causes comfort for humans but also becomes a serious threat to the environment.

OPINION | Understanding Mumbai's AQI: The Lack Of A Unified Architecture

Plastic pollution, biodegradable materials and sustainable manufacturing are becoming major priorities for scientists worldwide, and researchers in the United States may have found a breakthrough solution. Scientists at Rice University and the University of Houston have created a new bacteria-grown supermaterial using bacterial cellulose that is strong, flexible and environmentally friendly.

The oldest evidence for lead pollution comes from ancient Greece

Plastic is ubiquitous. Globally, around 400 million tonnes of new plastic are produced each year. Without improvements to laws, plastic production might increase by nearly 70 per cent by 2040. A deal to combat this global crisis will be finalised this weekend in South Korea