Delhi’s poor air quality has rightly made it the centre of media and government attention. Dust, caused by a wide range of natural and man-made activities, can have a deeply damaging impact on the respiratory tract. But at the levels at which they are being experienced, gaseous pollutants have equally detrimental effects. Watch the reality check on air quality in Delhi in this segment of DNA. Zee News is the highly popular Hindi News channel of India’s largest television network ZMCL.