单词	nitrogen dioxide
释义	nitrogen dioxide noun : a toxic reddish brown gas NO2 that is a strong oxidizing agent, is produced by combustion (as of fossil fuels), and is an atmospheric pollutant (as in smog) Example Sentences Recent Examples on the Web One study found that working remotely for four days of the work week could reduce nitrogen dioxide emissions from traffic by 10%. Serenity Gibbons, Forbes, 16 Aug. 2022 The American Medical Association has also expressed concern on this front, linking the use of gas stoves with unhealthy nitrogen dioxide levels and asthma. Jamie Gold, Forbes, 28 June 2022 There, the catalyst’s precious metals help convert the byproducts of internal combustion—carbon monoxide, nitric oxide, nitrogen dioxide, and unburned hydrocarbons—into carbon dioxide and water. Matt Crisara, Popular Mechanics, 9 Mar. 2022 The most significant health risks happen when the stove is lit, the authors note, because the process creates nitrogen dioxide as a byproduct. Corryn Wetzel, Smithsonian Magazine, 1 Feb. 2022 But studies tracking changes in carbon dioxide, nitrogen dioxide and fine particulates also show a rebound toward prepandemic levels. Amanda Montañez, Scientific American, 31 Dec. 2021 Research from the National Library of Medicine demonstrates that exposure to nitrogen dioxide and carbon monoxide particulate matter increases the risk of Alzheimer's disease and dementia. Jeffrey Harper, chicagotribune.com, 26 Mar. 2021 The database, which has traditionally considered two types of particulate matter known as PM2.5 and PM10, for the first time has included ground measurements of nitrogen dioxide. Washington Post, 1 Aug. 2014 That same year a block-by-block analysis of West Oakland measured especially high levels of nitrogen dioxide in Marcus Garvey Commons and near the Mandela Parkway, where some of the highest poverty rates in the Bay Area are found. Julia Hotz, Scientific American, 14 May 2022 See More Word History First Known Use 1869, in the meaning defined above Medical Definition nitrogen dioxide noun : a poisonous strongly oxidizing reddish brown gas NO2
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