| Autor: |
Arata, C, Zarzana, KJ, Misztal, PK, Liu, Y, Brown, SS, Nazaroff, WW, Goldstein, AH |
| Jazyk: |
angličtina |
| Rok vydání: |
2018 |
| Zdroj: |
Arata, C; Zarzana, KJ; Misztal, PK; Liu, Y; Brown, SS; Nazaroff, WW; et al.(2018). Measurement of NO3and N2O5in a Residential Kitchen. Environmental Science and Technology Letters, 5(10), 595-599. doi: 10.1021/acs.estlett.8b00415. UC Berkeley: Retrieved from: http://www.escholarship.org/uc/item/3fm226mh |
| DOI: |
10.1021/acs.estlett.8b00415. |
| Popis: |
© 2018 American Chemical Society. We present direct indoor measurements of the nitrate radical (NO3) and dinitrogen pentoxide (N2O5) produced from combustion cooking emissions in a residential kitchen. When the indoor ozone (O3) concentration was low (∼4 ppbv), nitric oxide (NO) emitted from gas stove combustion suppressed NO3formation. However, at moderate O3levels (∼40 ppbv), measured NO3concentrations reached 3-4 pptv, and the indoor NO3reactivity loss rate coefficient reached 0.8 s-1. A box model of known chemistry agrees with the reactivity estimate and shows that moderate O3levels led to a nitrate radical production rate of 7 ppbv h-1. These indoor NO3production rates and reactivities are much higher than those typically found outdoors. We conclude that at low O3levels indoor combustion suppresses nitrate radical chemistry, but when sufficient O3enters residences from outdoors or is emitted directly from indoor sources, gas stove combustion emissions promote indoor NO3chemistry. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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