WHO data show that almost all of the global population (99%) breathe air that exceeds WHO guideline limits and contains high ...

New Delhi's air pollution is more severe than previously estimated with particles absorbing atmospheric water vapor leading to particulate matter levels across the city being underestimated by up to ...

A groundbreaking study reveals that Delhi's air pollution is deadlier than estimated, with PM1 levels undercounted by 20%.

Delhi's air pollution is more severe than estimated due to the undercounting of PM1 pollutants by up to 20%, exacerbated by ...

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

Most of the world has dirty air, with just 17% of global cities meeting WHO air pollution guidelines, a report Tuesday found.

Fine particulate matter could be absorbing moisture from Delhi’s humid air during winters, which could result in an underestimation of the city’s PM1 pollution by up to 20 per cent, according to a new ...

A new study reveals that Delhi's winter humidity causes fine particulate matter (PM1) to absorb moisture, potentially ...

Former WHO chief scientist Soumya Swaminathan recommends air purifiers in schools to protect children from severe air ...

Water vapour causes fine particulate matter to swell, reducing sampling devices efficiency and leading to underestimation.

New Delhi's air pollution is more severe than previously estimated due to hygroscopic growth, which causes fine particulate matter (PM 1) to absorb water vapor, leading to underestimation by up to ...