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

Other forms of energy, such as oil and coal, also pose considerable health and safety risks including the emission of air pollution — soot, mercury, nitrogen dioxide and carbon dioxide contributing to climate change.

Read more on Los Angeles Times

A study of Northern California residents last year found carbon monoxide and nitrogen dioxide exposure, largely the product of vehicle emissions, was correlated with risk of tuberculosis.

Read more on Salon

In addition to smoke and soot, the space agency detected large plumes of harmful gases emanating from the wildfires, including lung-irritating nitrogen dioxide and cancer-causing formaldehyde.

Read more on Los Angeles Times

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.

Read more on BBC

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

Read more on Los Angeles Times