Unveiling the underestimated direct emissions of nitrous acid (HONO)

Q Zhang, P Liu, Y Wang, C George… - Proceedings of the …, 2023 - National Acad Sciences
Gaseous nitrous acid (HONO) is a critical source of hydroxyl radicals (OH) in the
troposphere. While both direct and secondary sources contribute to atmospheric HONO …

[PDF][PDF] 腔增强吸收光谱技术研究进展及其应用

韩荦, 夏滑, 董凤忠, 张志荣, 庞涛, 孙鹏帅… - Chinese Journal of …, 2018 - researching.cn
摘要腔增强吸收光谱技术具有实验装置相对简单, 灵敏度高, 环境适应性强等特点,
是高灵敏吸收光谱技术的重要组成部分. 随着半导体材料和封装工艺的发展 …

Review of incoherent broadband cavity-enhanced absorption spectroscopy (IBBCEAS) for gas sensing

K Zheng, C Zheng, Y Zhang, Y Wang, FK Tittel - Sensors, 2018 - mdpi.com
Incoherent broadband cavity-enhanced absorption spectroscopy (IBBCEAS) is of
importance for gas detection in environmental monitoring. This review summarizes the …

Comparison of atmospheric nitrous acid during severe haze and clean periods in Beijing, China

S Hou, S Tong, M Ge, J An - Atmospheric environment, 2016 - Elsevier
Continuous measurements were made in Beijing from 22 February to 2 March in 2014,
including a severe haze period and a relatively clean period. The concentration of nitrous …

The lack of HONO measurement may affect the accurate diagnosis of ozone production sensitivity

P Liu, C Xue, C Ye, C Liu, C Zhang, J Wang… - ACS …, 2022 - ACS Publications
Recently, deteriorating ozone (O3) pollution in China brought the precise diagnosis of O3
sensitive chemistry to the forefront. As a dominant precursor of OH radicals, atmospheric …

Short-lived species detection of nitrous acid by external-cavity quantum cascade laser based quartz-enhanced photoacoustic absorption spectroscopy

H Yi, R Maamary, X Gao, MW Sigrist, E Fertein… - Applied Physics …, 2015 - pubs.aip.org
Spectroscopic detection of short-lived gaseous nitrous acid (HONO) at 1254.85 cm− 1 was
realized by off-beam coupled quartz-enhanced photoacoustic spectroscopy (QEPAS) in …

Near-infrared broadband cavity-enhanced spectroscopic multigas sensor using a 1650 nm light emitting diode

K Zheng, C Zheng, N Ma, Z Liu, Y Yang, Y Zhang… - ACS …, 2019 - ACS Publications
A near-infrared broadband cavity-enhanced sensor system was demonstrated for the first
time using an energy-efficient light emitting diode (LED) with a central emission wavelength …

Development of an incoherent broadband cavity-enhanced absorption spectrometer for in situ measurements of HONO and

J Duan, M Qin, B Ouyang, W Fang, X Li… - Atmospheric …, 2018 - amt.copernicus.org
Gaseous nitrous acid (HONO) is an important source of OH radicals in the troposphere.
However, its source, especially that during daytime hours remains unclear. We present an …

Development of stripping coil-ion chromatograph method and intercomparison with CEAS and LOPAP to measure atmospheric HONO

C Xue, C Ye, Z Ma, P Liu, Y Zhang, C Zhang… - Science of the Total …, 2019 - Elsevier
Nitrous acid (HONO) is the major precursor of OH radicals in polluted areas. Accurate
measurement of HONO provides vital evidence for exploring the formation of secondary …

A dual dynamic chamber system based on IBBCEAS for measuring fluxes of nitrous acid in agricultural fields in the North China Plain

K Tang, M Qin, J Duan, W Fang, F Meng, S Liang… - Atmospheric …, 2019 - Elsevier
A dual dynamic chamber system combined with incoherent broadband cavity enhanced
absorption spectroscopy (IBBCEAS) was first developed to measure nitrous acid (HONO) …