Delhi-NCR turns into 'gas chamber', visibility reduces too

Air pollution in Delhi has exceeded 1,000 micrograms per cubic metre of air—100 times the limit the WHO suggests for long-run exposure.
 With air pollution in the city again touching 'emergency' levels, the Delhi government on Wednesday ordered schools in the national capital to remain shut till Friday.
This is the second time this month that the EPCA has asked the government to shut schools. The Supreme Court-mandated anti-pollution authority had earlier asked the government to close schools between November 1 and 5.