Measurement of NO3 and N2O5 in a Residential Kitchen

Caleb Arata; Kyle J. Zarzana; Pawel K. Misztal; Yingjun Liu; Steven S. Brown; William W. Nazaroff; Allen H. Goldstein

doi:10.1021/acs.estlett.8b00415

Measurement of NO₃ and N₂O₅ in a Residential Kitchen

Caleb Arata, Kyle J. Zarzana, Pawel K. Misztal, Yingjun Liu, Steven S. Brown, William W. Nazaroff, Allen H. Goldstein

Experimental Science Section

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46 Scopus citations

Abstract

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 NO₃ formation. However, at moderate O₃ levels (∼40 ppbv), measured NO₃ concentrations reached 3-4 pptv, and the indoor NO₃ reactivity loss rate coefficient reached 0.8 s^-1. A box model of known chemistry agrees with the reactivity estimate and shows that moderate O₃ levels led to a nitrate radical production rate of 7 ppbv h^-1. These indoor NO₃ production rates and reactivities are much higher than those typically found outdoors. We conclude that at low O₃ levels indoor combustion suppresses nitrate radical chemistry, but when sufficient O₃ enters residences from outdoors or is emitted directly from indoor sources, gas stove combustion emissions promote indoor NO₃ chemistry.

Original language	English
Pages (from-to)	595-599
Number of pages	5
Journal	Environmental Science and Technology Letters
Volume	5
Issue number	10
DOIs	https://doi.org/10.1021/acs.estlett.8b00415
State	Published - Oct 9 2018

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title = "Measurement of NO3 and N2O5 in a Residential Kitchen",

abstract = "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 NO3 formation. However, at moderate O3 levels (∼40 ppbv), measured NO3 concentrations reached 3-4 pptv, and the indoor NO3 reactivity loss rate coefficient reached 0.8 s-1. A box model of known chemistry agrees with the reactivity estimate and shows that moderate O3 levels led to a nitrate radical production rate of 7 ppbv h-1. These indoor NO3 production rates and reactivities are much higher than those typically found outdoors. We conclude that at low O3 levels indoor combustion suppresses nitrate radical chemistry, but when sufficient O3 enters residences from outdoors or is emitted directly from indoor sources, gas stove combustion emissions promote indoor NO3 chemistry.",

author = "Caleb Arata and Zarzana, \{Kyle J.\} and Misztal, \{Pawel K.\} and Yingjun Liu and Brown, \{Steven S.\} and Nazaroff, \{William W.\} and Goldstein, \{Allen H.\}",

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doi = "10.1021/acs.estlett.8b00415",

language = "English",

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T1 - Measurement of NO3 and N2O5 in a Residential Kitchen

AU - Arata, Caleb

AU - Zarzana, Kyle J.

AU - Misztal, Pawel K.

AU - Liu, Yingjun

AU - Brown, Steven S.

AU - Nazaroff, William W.

AU - Goldstein, Allen H.

PY - 2018/10/9

Y1 - 2018/10/9

N2 - 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 NO3 formation. However, at moderate O3 levels (∼40 ppbv), measured NO3 concentrations reached 3-4 pptv, and the indoor NO3 reactivity loss rate coefficient reached 0.8 s-1. A box model of known chemistry agrees with the reactivity estimate and shows that moderate O3 levels led to a nitrate radical production rate of 7 ppbv h-1. These indoor NO3 production rates and reactivities are much higher than those typically found outdoors. We conclude that at low O3 levels indoor combustion suppresses nitrate radical chemistry, but when sufficient O3 enters residences from outdoors or is emitted directly from indoor sources, gas stove combustion emissions promote indoor NO3 chemistry.

AB - 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 NO3 formation. However, at moderate O3 levels (∼40 ppbv), measured NO3 concentrations reached 3-4 pptv, and the indoor NO3 reactivity loss rate coefficient reached 0.8 s-1. A box model of known chemistry agrees with the reactivity estimate and shows that moderate O3 levels led to a nitrate radical production rate of 7 ppbv h-1. These indoor NO3 production rates and reactivities are much higher than those typically found outdoors. We conclude that at low O3 levels indoor combustion suppresses nitrate radical chemistry, but when sufficient O3 enters residences from outdoors or is emitted directly from indoor sources, gas stove combustion emissions promote indoor NO3 chemistry.

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SP - 595

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JO - Environmental Science and Technology Letters

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IS - 10

ER -

Measurement of NO₃ and N₂O₅ in a Residential Kitchen

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