These photos of pollution in Delhi reveal why authorities are calling the city a 'gas chamber'

Saumya Khandelwal - Reuters

A woman wearing a scarf to cover her face looks on as she waits for a passenger bus on a smoggy morning.

Don't walk. Don't go to school. Don't breathe too fast.

That's just some of the advice from authorities in Delhi, India this past week, when the smog became so thick that is was described by the local government as a "gas chamber."

Last November, the city experienced some of its worst pollution in decades, and this year looks like it's going to be a repeat. Here's what it's like for people who live in the Indian capital right now:.