Isotopic characterization of nitrogen oxides (NOx), nitrous acid (HONO), and nitrate (pNO3-) from laboratory biomass burning during FIREX

Jiajue Chai, David J. Miller, Eric Scheuer, Jack Dibb, Vanessa Selimovic, Robert Yokelson, Kyle K. Zarzana, Steven Brown, Abigail R. Koss, Carsten Warneke, Meredith Hastings

Research output: Contribution to journalArticlepeer-review

Abstract

New techniques have recently been developed and applied to capture reactive nitrogen species, including nitrogen oxides (NOx D NOCNO2), nitrous acid (HONO), nitric acid (HNO3), and particulate nitrate (pNO3 ), for accurate measurement of their isotopic composition. Here, we report – for the first time – the isotopic composition of HONO from biomass burning (BB) emissions collected during the Fire Influence on Regional to Global Environments Experiment (FIREX, later evolved into FIREX-AQ) at the Missoula Fire Science Laboratory in the fall of 2016. We used our newly developed annular denuder system (ADS), which was verified to completely capture HONO associated with BB in comparison with four other high-timeresolution concentration measurement techniques, including mist chamber–ion chromatography (MC–IC), open-path Fourier transform infrared spectroscopy (OP-FTIR), cavityenhanced spectroscopy (CES), and proton-transfer-reaction time-of-flight mass spectrometry (PTR-ToF).

Original languageEnglish
Pages (from-to)6303-6317
Number of pages15
JournalAtmospheric Measurement Techniques
Volume12
Issue number12
DOIs
StatePublished - Nov 29 2019

Fingerprint

Dive into the research topics of 'Isotopic characterization of nitrogen oxides (NOx), nitrous acid (HONO), and nitrate (pNO3-) from laboratory biomass burning during FIREX'. Together they form a unique fingerprint.

Cite this