Observed Relationship between Ozone and Temperature for Urban Nonattainment Areas in the United States
This study examined the observed relationship between ozone (O<sub>3</sub>) and temperature using data from 1995 to 2020 at 20 cities across the United States (U.S.) that exceed the O<sub>3</sub> National Ambient Air Quality Standard (NAAQS). The median slope of the O<sub&...
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MDPI AG
2021-09-01
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| Series: | Atmosphere |
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| Online Access: | https://www.mdpi.com/2073-4433/12/10/1235 |
| _version_ | 1797515352599429120 |
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| author | Matthew Ninneman Daniel Jaffe |
| author_facet | Matthew Ninneman Daniel Jaffe |
| author_sort | Matthew Ninneman |
| collection | DOAJ |
| description | This study examined the observed relationship between ozone (O<sub>3</sub>) and temperature using data from 1995 to 2020 at 20 cities across the United States (U.S.) that exceed the O<sub>3</sub> National Ambient Air Quality Standard (NAAQS). The median slope of the O<sub>3</sub> versus temperature relationship decreased from 2.8 to 1.5 parts per billion per degrees Celsius (ppb °C<sup>−1</sup>) in the eastern U.S., 2.2 to 1.3 ppb °C<sup>−1</sup> in the midwestern U.S., and 1.7 to 1.1 ppb °C<sup>−1</sup> in the western U.S. O<sub>3</sub> in the eastern and midwestern U.S. has become less correlated with temperature due to emission controls. In the western U.S., O<sub>3</sub> concentrations have declined more slowly and the correlation between O<sub>3</sub> and temperature has changed negligibly due to the effects of high background O<sub>3</sub> and wildfire smoke. This implies that meeting the O<sub>3</sub> NAAQS in the western U.S. will be more challenging compared with other parts of the country. |
| first_indexed | 2024-03-10T06:44:17Z |
| format | Article |
| id | doaj.art-59086dbc5b894fed86cec5817522108c |
| institution | Directory Open Access Journal |
| issn | 2073-4433 |
| language | English |
| last_indexed | 2024-03-10T06:44:17Z |
| publishDate | 2021-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Atmosphere |
| spelling | doaj.art-59086dbc5b894fed86cec5817522108c2023-11-22T17:24:20ZengMDPI AGAtmosphere2073-44332021-09-011210123510.3390/atmos12101235Observed Relationship between Ozone and Temperature for Urban Nonattainment Areas in the United StatesMatthew Ninneman0Daniel Jaffe1School of Science, Technology, Engineering and Mathematics, University of Washington Bothell, 18115 Campus Way NE, Bothell, WA 98011, USASchool of Science, Technology, Engineering and Mathematics, University of Washington Bothell, 18115 Campus Way NE, Bothell, WA 98011, USAThis study examined the observed relationship between ozone (O<sub>3</sub>) and temperature using data from 1995 to 2020 at 20 cities across the United States (U.S.) that exceed the O<sub>3</sub> National Ambient Air Quality Standard (NAAQS). The median slope of the O<sub>3</sub> versus temperature relationship decreased from 2.8 to 1.5 parts per billion per degrees Celsius (ppb °C<sup>−1</sup>) in the eastern U.S., 2.2 to 1.3 ppb °C<sup>−1</sup> in the midwestern U.S., and 1.7 to 1.1 ppb °C<sup>−1</sup> in the western U.S. O<sub>3</sub> in the eastern and midwestern U.S. has become less correlated with temperature due to emission controls. In the western U.S., O<sub>3</sub> concentrations have declined more slowly and the correlation between O<sub>3</sub> and temperature has changed negligibly due to the effects of high background O<sub>3</sub> and wildfire smoke. This implies that meeting the O<sub>3</sub> NAAQS in the western U.S. will be more challenging compared with other parts of the country.https://www.mdpi.com/2073-4433/12/10/1235ozonetemperatureozone nonattainment areas |
| spellingShingle | Matthew Ninneman Daniel Jaffe Observed Relationship between Ozone and Temperature for Urban Nonattainment Areas in the United States Atmosphere ozone temperature ozone nonattainment areas |
| title | Observed Relationship between Ozone and Temperature for Urban Nonattainment Areas in the United States |
| title_full | Observed Relationship between Ozone and Temperature for Urban Nonattainment Areas in the United States |
| title_fullStr | Observed Relationship between Ozone and Temperature for Urban Nonattainment Areas in the United States |
| title_full_unstemmed | Observed Relationship between Ozone and Temperature for Urban Nonattainment Areas in the United States |
| title_short | Observed Relationship between Ozone and Temperature for Urban Nonattainment Areas in the United States |
| title_sort | observed relationship between ozone and temperature for urban nonattainment areas in the united states |
| topic | ozone temperature ozone nonattainment areas |
| url | https://www.mdpi.com/2073-4433/12/10/1235 |
| work_keys_str_mv | AT matthewninneman observedrelationshipbetweenozoneandtemperatureforurbannonattainmentareasintheunitedstates AT danieljaffe observedrelationshipbetweenozoneandtemperatureforurbannonattainmentareasintheunitedstates |