The countries with the worst air quality included Bangladesh and India, according to an annual report from IQAir.

Chad, in central Africa, is the world’s most polluted country, while California has the worst air pollution in North America, ...

A small city on the Meghalaya-Assam border, nearly 2,000 kilometres away from Delhi, is the most polluted in the world, ...

Byrnihat reported an annual average PM2.5 level of 128.2 ... level and over three times more than the Indian ambient air quality standards. High air pollution level in the little-known Meghalayan city ...

The Indian cities featured in the 20 most ... The World Health Organization’s Global Air Quality Guidelines prescribes a “safe” annual average PM2.5 concentration of 5 μg/m³.

The small town of Byrnihat is the most polluted city in India with an AQI of 128.2µg/m³ with ... high pollution levels, with an annual average of 91.6 µg/m³, nearly unchanged from 92.7 µg/ ...

A new report on air quality released ... of the world's 10 most polluted cities are still in India. Delhi recorded consistently high pollution levels, with an annual average PM2.5 concentration ...

CHENNAI: Chennai recorded a sharp rise in nitrogen dioxide (NO2) levels and witnessed localised air pollution hotspots this ...

All but one of the world’s top 20 most polluted cities ... Its national annual average PM2.5 concentration decreased from 32.5 micrograms per cubic meter to 31, with air quality improving ...

According to the 2024 World Air Quality Report by equipment manufacturer IQAir, New Delhi fares much worse than the capitals of Bangladesh, Pakistan and Nepal.

Delhi reclaims the title of the world's most polluted capital amid worsening winter air quality across Indian megacities ...

Six out the world’s 10 most polluted cities are in India ... average annual concentrations of PM2.5 should not exceed 5 micrograms per cubic meter, only 17% of global cities meet its air quality ...