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  2. Nitrogen dioxide - Wikipedia

    en.m.wikipedia.org/wiki/Nitrogen_dioxide

    Nitrogen dioxide is a chemical compound with the formula NO 2. One of several nitrogen oxides, nitrogen dioxide is a reddish-brown gas. It is a paramagnetic, bent molecule with C 2v point group symmetry.

  3. Nitrogen dioxide | Definition, Chemistry, Sources, Air ...

    www.britannica.com/science/nitrogen-dioxide

    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 ...

  4. Nitrogen Dioxide - American Lung Association

    www.lung.org/.../what-makes-air-unhealthy/nitrogen-dioxide

    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 diesel are burned at high temperatures.

  5. Basic Information about NO2 | US EPA - U.S. Environmental ...

    www.epa.gov/no2-pollution/basic-information-about-no2

    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.

  6. Nitrogen Oxides - Center for Science Education

    scied.ucar.edu/learning-zone/air-quality/nitrogen-oxides

    Nitrogen Oxides. Nitric oxide (NO) and nitrogen dioxide (NO 2) are two gases whose molecules are made of nitrogen and oxygen atoms. These nitrogen oxides contribute to the problem of air pollution, playing roles in the formation of both smog and acid rain.

  7. Nitrogen Dioxide | Air Quality - NASA

    airquality.gsfc.nasa.gov/no2

    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 pollutant.

  8. Air quality, energy and health - World Health Organization (WHO)

    www.who.int/teams/environment-climate-change-and-health/...

    Nitrogen dioxide (NO 2) is a reddish-brown gas that is soluble in water, and a strong oxidant. Ambient sources of NO 2 results from high temperature combustion of fuels in processes such as those used for heating, transportation, industry and power generation.

  9. Air Pollution Nitrogen Dioxide - GreenFacts

    www.greenfacts.org/en/nitrogen-dioxide-no2

    What is Nitrogen Dioxide (NO 2)? Nitrogen dioxide is part of a group of gaseous air pollutants produced as a result of road traffic and other fossil fuel combustion processes. Its presence in air contributes to the formation and modification of other air pollutants, such as ozone and particulate matter , and to acid rain .

  10. Nitrogen Dioxide (NO₂) - Definition, Structure, Preparation ...

    www.examples.com/chemistry/nitrogen-dioxide.html

    Nitrogen dioxide, often symbolized as NO2, is like a tiny molecule puzzle with one nitrogen atom holding hands with two oxygen atoms. Imagine the nitrogen atom in the center, acting as a hub, and the two oxygen atoms on either side, kind of like a V-shape.

  11. Basic Information about NO2 | Nitrogen Dioxide (NO2 ... - US EPA

    19january2021snapshot.epa.gov/no2-pollution/basic...

    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.