“Authorities in Delhi are considering shutting schools in the sprawling Indian capital as a bout of toxic smog stretches into a second month.   The megacity, already the world’s most polluted by some measures, has been suffering record levels of pollution which exceed recommended WHO guidelines by between 15 and 30 times.  The smog, a combination of exhaust from cars and lorries, dust, smoke from fires and industrial output which is intensified by cold temperatures, is predicted to last for months to come.”   The Guardian

guardian Dec 12
Read it on Delhiair.org: Delhi Considers Shutting Schools as Toxic Smog Continues