A thick layer of smog blankets the national capital as the AQI levels shot up to 507, as per the IQAir website data. PM2.5 levels in Delhi-NCR were recorded over 65 times more than the WHO-prescri ...

The amount of PM2.5 air pollution has increased in Thailand in recent years, driven by multiple factors such as industrial manufacturing, the widespread use of internal combustion engine-powered ...

Kolkata: The city ranked fifth among 23 Indian state capitals in terms of PM2.5 concentration in March 2025 despite meeting the National Ambient Air Quality Standards (NAAQS), according to a ...

TOKYO -- The economic burden of health problems caused by hazardous small particles known as PM2.5 totals about $110 billion a year in Japan, according to a study by the University of Tokyo.

Delhi remains the most polluted megacity with a winter average PM2.5 level of 175 micrograms per cubic metre, 1% higher than the last three-year average. Despite efforts, prolonged poor air ...