In Pictures: Delhi Breaths Poison As Toxic smog suffocates People

Delhi once again turns into a gas chamber/ File photo: PTI

Representational Image: PTI

PTI Photo/ File

Delhi suffers worst environment pollution

Image: AFP

After Diwali last year, Delhi witnessed a similar episode of smog which lasted nearly a week, prompting authorities to declare emergency measures for the first time in the city's history. AP Photo

The smog triggered near zero visibility at many places, pile-ups on highways and delay in flight operations. AP Photo

He called for more detailed studies to support the efficacy of air purifiers and N95 masks. PTI Photo

"There is an absolute need to avoid the hotspots of air pollution, which one can come to know through applications. However, we need a long term solution, all these are short term." PTI Photo

"We all need to understand that N95 masks and air purifiers may not provide full-time protection, and are not completely effective," said the renowned pulmonologist. PTI Photo

Doctors simultaneously issued health advisories, asking people to avoid outdoor activities and take steps to prevent allergies and infections that can be deadly for the elderly, children and pregnant women. PTI Photo

The Delhi government on Wednesday announced that all schools in the national capital will remain closed till Sunday in view of the "unbearable" air pollution. PTI Photo

Calling the current situation of dense smog a "silent killer", he said that while there was a surge in sale of anti-pollution masks and air purifiers, they were not very useful. PTI Photo

Asked what the people should do to tackle the smog, Guleria said: "It's better to stay indoors and not go out. PTI Photo

AIIMS Director Randeep Guleria said that N95 masks and air purifiers are not completely effective in the current air pollution scenario. PTI Photo