Cool weather traps smog over New Delhi

The National - News - - NEWS | WORLD -

Cooler tem­per­a­tures and light winds trapped heavy smog over the In­dian cap­i­tal yes­ter­day, push­ing pol­lu­tion to se­vere lev­els in many places with no im­me­di­ate re­lief in sight. The over­all air qual­ity in­dex in New Delhi was 494, ac­cord­ing to the mon­i­tor­ing agency Safar. The in­dex mea­sures the lev­els of air­borne PM 2.5 – par­ti­cles that can reach deep into the lungs. Any­thing above 60 is con­sid­ered un­healthy. With the cool sea­son set­ting in, the city was likely to suf­fer for weeks. “Now that it is get­ting colder, air is not rising high enough to dis­perse pol­lu­tants. The whole trap­ping is hap­pen­ing close to the ground,” said An­u­mita Roy Chowd­hury, ex­ec­u­tive direc­tor at the Cen­tre for Science and En­vi­ron­ment in New Delhi.

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