One of several nitrogen oxides, nitrogen dioxide is a reddish-brown gas. It is a paramagnetic, bent molecule with C 2v point group symmetry. Industrially, NO2 is an intermediate in the synthesis of nitric acid, millions of tons of which are produced each year, primarily for the production of …

Jul 16, 2024 · What is NO 2 and how does it get in the air? Nitrogen Dioxide (NO 2) is one of a group of highly reactive gases known as oxides of nitrogen or nitrogen oxides (NO x). Other nitrogen oxides include nitrous acid and nitric acid. NO 2 is used as the indicator for the larger group of nitrogen oxides.

Oct 26, 2023 · Nitrogen dioxide, or NO 2, is a gaseous air pollutant composed of nitrogen and oxygen and is one of a group of related gases called nitrogen oxides, or NO x. Nitrogen dioxide forms when fossil fuels such as coal, oil, methane gas (natural gas) or …

Jan 16, 2025 · What is NO 2 and how does it get in the air? What are the harmful effects of NO 2? What is being done to reduce NO 2 pollution?

Nitrogen oxide (NO2). A highly poisonous gas. Exposure produces inflammation of lungs that may only cause slight pain or pass unnoticed, but resulting edema several days later may cause death. (From Merck, 11th ed) It is a major atmospheric pollutant that is able to absorb UV light that does not reach the earth's surface.

Mar 7, 2025 · nitrogen dioxide, inorganic compound, a highly reactive and poisonous gas. Nitrogen dioxide is one of several nitrogen oxides (NO x), including nitrous acid and nitric acid, and is often used as an indicator for the larger group of nitrogen oxides. Pungent and extremely volatile, the gas is a dangerous air pollutant associated with fossil fuel ...

Mar 27, 2025 · Nitrogen dioxide (NO 2), which is unhealthy to breathe (e.g., Anenberg et al., 2018; Eum et al., 2019), is a member of the NO x family (NO x = NO + NO 2) and is a necessary ingredient for the formation of unhealthy levels of surface ozone (O 3), another important trace gas. It is primarily generated during fossil fuel combustion, so thermal ...

May 12, 2020 · NO 2 is the main source of nitrate aerosols, which form an important fraction of PM 2.5 and, in the presence of ultraviolet light, of ozone. The major sources of anthropogenic emissions of NO 2 are combustion processes.

Jan 28, 2025 · Nitrogen dioxide is a gas that’s a bit of a troublemaker in our air. It’s made up of nitrogen and oxygen, two elements that are usually harmless on their own. But when they come together to form nitrogen dioxide, they create a reddish-brown gas that can make our air dirty and unhealthy to breathe.

NO 2 is a highly poisonous gas with the chemical name Nitrogen dioxide. It is also called Nitrogen (IV) oxide or Deutoxide of nitrogen. It is one of the major atmospheric pollutants that absorb UV light and stops to reach the earth’s surface.