Noun:

धूम-कोहरा,

smog's Usage Examples:

Summertime smog, or ozone, is also caused by traffic.

In a city, this has the added benefit of providing cleaner air and reducing the air pollution and smog that is a problem in many large cities.

However, sunlight is not always the most effective source for the vitamin, depending on geographic latitude, seasonal changes, cloud cover, smog and sunscreen.

Most people who live in or near a large city are familiar with the look of smog that appears as a thick, gray blanket of air pollution that covers the city.

Noxious gases, as they're released into the air, cause chemical changes in the atmosphere which result in the formation of smog and acid rain.

Smog was cited as a major factor that contributes to global warming.

He waved a hand at the smog and all that caused it.

The Atlanta night was muggy and dark; a thin layer of smog trapped the city's light and made the sky glow an eerie yellow-orange.

It would be nice getting away from the smog and traffic for a while.

Not a grain of smog anywhere.

Synonyms:

smogginess, air pollution,