| Title | Comparison of Simultaneous Measurements of Indoor Nitrous Acid: Implications for the Spatial Distribution of Indoor HONO Emissions br |
| Author | |
| Corresponding Author | Bottorff, Brandon |
| Publication Years | 2022-09-01
|
| DOI | |
| Source Title | |
| ISSN | 0013-936X
|
| EISSN | 1520-5851
|
| Abstract | Despite its importance as a radical precursor and a hazardous pollutant, the chemistry of nitrous acid (HONO) in the indoor environment is not fully understood. We present results from a comparison of HONO measurements from a time-of-flight chemical ionization mass spectrometer (ToF-CIMS) and a laser photofragmentation/laser-induced fluorescence (LP/LIF) instrument during the House Observations of Microbial and Environmental Chemistry (HOMEChem) campaign. Experiments during HOMEChem simulated typical household activities and provided a dynamic range of HONO mixing ratios. The instruments measured HONO at different locations in a house featuring a typical air change rate (ACR) (0.5 h-1) and an enhanced mixing rate (similar to 8 h-1). Despite the distance between the instruments, measurements from the two instruments agreed to within their respective uncertainties (slope = 0.85, R2 = 0.92), indicating that the lifetime of HONO is long enough for it to be quickly distributed indoors, although spatial gradients occurred during ventilation periods. This suggests that emissions of HONO from any source can mix throughout the house and can contribute to OH radical production in sunlit regions, enhancing the oxidative capacity indoors. Measurement discrepancies were likely due to interferences with the LP/ LIF instrument as well as calibration uncertainties associated with both instruments. |
| Keywords | |
| URL | [Source Record] |
| Indexed By | |
| Language | English
|
| Important Publications | NI Journal Papers
|
| SUSTech Authorship | Others
|
| Funding Project | Alfred P. Sloan Foundation, Chemistry of Indoor Environments Program["G-2017-9944","G-2018-11061","G-2019-11404"]
|
| WOS Research Area | Engineering
; Environmental Sciences & Ecology
|
| WOS Subject | Engineering, Environmental
; Environmental Sciences
|
| WOS Accession No | WOS:000862684300001
|
| Publisher | |
| ESI Research Field | ENVIRONMENT/ECOLOGY
|
| Data Source | Web of Science
|
| Citation statistics |
Cited Times [WOS]:0
|
| Document Type | Journal Article |
| Identifier | http://kc.sustech.edu.cn/handle/2SGJ60CL/406016 |
| Department | School of Environmental Science and Engineering |
| Affiliation | 1.Indiana Univ, Dept Chem, Bloomington, IN 47405 USA 2.Indiana Univ, ONeill Sch Publ & Environm Affairs, Bloomington, IN 47405 USA 3.Univ Toronto, Dept Chem, Toronto, ON M5S 3H6, Canada 4.Southern Univ Sci & Technol, Sch Environm Sci & Engn, Shenzhen 518055, Peoples R China 5.Univ Calif Davis, Air Qual Res Ctr, Davis, CA 95616 USA 6.Colorado State Univ, Dept Chem, Ft Collins, CO 80523 USA 7.Univ Colorado Boulder, Dept Mech Engn, Boulder, CO 80309 USA |
| Recommended Citation GB/T 7714 |
Bottorff, Brandon,Wang, Chen,Reidy, Emily,et al. Comparison of Simultaneous Measurements of Indoor Nitrous Acid: Implications for the Spatial Distribution of Indoor HONO Emissions br[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2022.
|
| APA |
Bottorff, Brandon.,Wang, Chen.,Reidy, Emily.,Rosales, Colleen.,Farmer, Delphine K..,...&Stevens, Philip S..(2022).Comparison of Simultaneous Measurements of Indoor Nitrous Acid: Implications for the Spatial Distribution of Indoor HONO Emissions br.ENVIRONMENTAL SCIENCE & TECHNOLOGY.
|
| MLA |
Bottorff, Brandon,et al."Comparison of Simultaneous Measurements of Indoor Nitrous Acid: Implications for the Spatial Distribution of Indoor HONO Emissions br".ENVIRONMENTAL SCIENCE & TECHNOLOGY (2022).
|
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