Concentration of PM10 in India 2001-2021, by select city
PM10 concentrations in Delhi averaged 216 micrograms per cubic meter of air (μg/m³) in 2021. Annual concentrations of PM10 in Delhi have increased significantly over the last two decades, and it is now the second-most polluted capital city in the world.
While there is no safe level of PM10, the World Health Organization recommends an annual average concentration of 15 μg/m³. Long term exposure to PM10 can be very harmful to human health as these tiny particles can penetrate deep into the lungs, thus causing breathing problems and other health impacts.
While there is no safe level of PM10, the World Health Organization recommends an annual average concentration of 15 μg/m³. Long term exposure to PM10 can be very harmful to human health as these tiny particles can penetrate deep into the lungs, thus causing breathing problems and other health impacts.
