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Direct observation of changing NO x lifetime in North American cities.

ABSTRACT: NO x lifetime relates nonlinearly to its own concentration; therefore, by observing how NO x 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 NO2 from a new high-resolution product to show that NO x lifetime in approximately 30 North American cities has changed between 2005 and 2014 in a manner consistent with our understanding of NO x chemistry.

SUBMITTER: Laughner JL

PROVIDER: S-EPMC7301961 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature

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Direct observation of changing NO x lifetime in North American cities.

Laughner Joshua L JL Cohen Ronald C RC

Science (New York, N.Y.) 20191101 6466

NO x lifetime relates nonlinearly to its own concentration; therefore, by observing how NO x 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 NO2 from a new high-resolution product to show that NO x lifetime in approximately 30 North American cities has changed between 2005 and 2014 in a manner consistent with our u ...[more]

PMID: 31699933

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