Direct observation of changing NO <i><sub>x</sub></i> lifetime in North American cities.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 31699933.
- Also identified by DOI 10.1126/science.aax6832 and PMC identifier 7301961.
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Abstract
NO <i><sub>x</sub></i> lifetime relates nonlinearly to its own concentration; therefore, by observing how NO <i><sub>x</sub></i> lifetime changes with changes in its concentration, inferences can be made about the dominant chemistry occurring in an urban plume. We used satellite observations of NO<sub>2</sub> from a new high-resolution product to show that NO <i><sub>x</sub></i> lifetime in approximately 30 North American cities has changed between 2005 and 2014 in a manner consistent with our understanding of NO <i><sub>x</sub></i> chemistry.
Medical subject headings
- Air Pollutants
- Air Pollution
- Nitric Oxide