nitrogen dioxide

noun

, Chemistry.

1. a reddish-brown, highly poisonous gas, NO 2 , used as an intermediate in the manufacture of nitric and sulfuric acids, and as a nitrating and oxidizing agent; a major air pollutant from the exhaust of internal combustion engines that are not fitted with pollution control devices.

nitrogen dioxide

noun

1. a red-brown poisonous irritating gas that, at ordinary temperatures, exists in equilibrium with dinitrogen tetroxide. It is an intermediate in the manufacture of nitric acid, a nitrating agent, and also an oxidizer for rocket fuels. Formula: NO 2

Example Sentences

In 2016, before it started, London had the highest concentration of nitrogen dioxide - a key air pollutant from road traffic - of any city in the UK.

From BBC

Researchers concluded exposure to nitrogen dioxide emissions alone may contribute to nearly 19,000 premature deaths in the United States each year.

From Los Angeles Times

For decades, scientists have known the flames from a gas stovetop produce nitrogen dioxide, a pungent gas that can inflame a person’s lungs when inhaled.

From Los Angeles Times

Gas stoves also produce harmful air pollutants like carbon monoxide, nitrogen dioxide, and benzene, a known carcinogen.

From Salon

It also relies on past studies of health impacts from nitrogen dioxide encountered outdoors, where additional pollutants from vehicles and power plants are present.

From Science Daily