Articles | Volume 14, issue 3
https://doi.org/10.5194/amt-14-2285-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-14-2285-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
24 Mar 2021
Research article |
| 24 Mar 2021
| 24 Mar 2021
The improved comparative reactivity method (ICRM): measurements of OH reactivity under high-NOx conditions in ambient air
Wenjie Wang
Institute for Environmental and Climate Research, Jinan University, Guangzhou 511443, China
Multiphase Chemistry Department, Max Planck Institute for Chemistry, 55128 Mainz, Germany
Jipeng Qi
Institute for Environmental and Climate Research, Jinan University, Guangzhou 511443, China
Guangdong–Hong Kong–Macau Joint Laboratory of Collaborative Innovation for Environmental Quality, Guangzhou 511443, China
Institute for Environmental and Climate Research, Jinan University, Guangzhou 511443, China
Guangdong–Hong Kong–Macau Joint Laboratory of Collaborative Innovation for Environmental Quality, Guangzhou 511443, China
Institute for Environmental and Climate Research, Jinan University, Guangzhou 511443, China
Guangdong–Hong Kong–Macau Joint Laboratory of Collaborative Innovation for Environmental Quality, Guangzhou 511443, China
Yuwen Peng
Institute for Environmental and Climate Research, Jinan University, Guangzhou 511443, China
Guangdong–Hong Kong–Macau Joint Laboratory of Collaborative Innovation for Environmental Quality, Guangzhou 511443, China
Sihang Wang
Institute for Environmental and Climate Research, Jinan University, Guangzhou 511443, China
Guangdong–Hong Kong–Macau Joint Laboratory of Collaborative Innovation for Environmental Quality, Guangzhou 511443, China
Suxia Yang
Institute for Environmental and Climate Research, Jinan University, Guangzhou 511443, China
Guangdong–Hong Kong–Macau Joint Laboratory of Collaborative Innovation for Environmental Quality, Guangzhou 511443, China
Jonathan Williams
Atmospheric Chemistry Department, Max Planck Institute for Chemistry, 55128 Mainz, Germany
Vinayak Sinha
Department of Earth and Environmental Sciences, Indian Institute of Science Education and Research (IISER), Mohali 140306, India
Min Shao
Institute for Environmental and Climate Research, Jinan University, Guangzhou 511443, China
Guangdong–Hong Kong–Macau Joint Laboratory of Collaborative Innovation for Environmental Quality, Guangzhou 511443, China
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Cited
8 citations as recorded by crossref.
- Direct observations indicate photodegradable oxygenated volatile organic compounds (OVOCs) as larger contributors to radicals and ozone production in the atmosphere W. Wang et al. 10.5194/acp-22-4117-2022
- A Review of the Direct Measurement of Total OH Reactivity: Ambient Air and Vehicular Emission X. Yang 10.3390/su152316246
- Reassessing the missing OH reactivity based on organic molecular formulas: Comparison between urban and regional environments J. Qi et al. 10.1016/j.atmosenv.2025.121240
- Examination of long-time aging process on volatile organic compounds emitted from solid fuel combustion in a rural area of China K. He et al. 10.1016/j.chemosphere.2023.138957
- Characteristics of VOC Composition at Urban and Suburban Sites of New Delhi, India in Winter N. Tripathi et al. 10.1029/2021JD035342
- Fast measurement of OH reactivity utilizing laser photolysis-laser induced fluorescence system based on kOH-NLM algorithm Y. Wang et al. 10.1016/j.snb.2024.136798
- Long-term trend of ozone pollution in China during 2014–2020: distinct seasonal and spatial characteristics and ozone sensitivity W. Wang et al. 10.5194/acp-22-8935-2022
- Vertical changes in volatile organic compounds (VOCs) and impacts on photochemical ozone formation X. Li et al. 10.5194/acp-25-2459-2025
8 citations as recorded by crossref.
- Direct observations indicate photodegradable oxygenated volatile organic compounds (OVOCs) as larger contributors to radicals and ozone production in the atmosphere W. Wang et al. 10.5194/acp-22-4117-2022
- A Review of the Direct Measurement of Total OH Reactivity: Ambient Air and Vehicular Emission X. Yang 10.3390/su152316246
- Reassessing the missing OH reactivity based on organic molecular formulas: Comparison between urban and regional environments J. Qi et al. 10.1016/j.atmosenv.2025.121240
- Examination of long-time aging process on volatile organic compounds emitted from solid fuel combustion in a rural area of China K. He et al. 10.1016/j.chemosphere.2023.138957
- Characteristics of VOC Composition at Urban and Suburban Sites of New Delhi, India in Winter N. Tripathi et al. 10.1029/2021JD035342
- Fast measurement of OH reactivity utilizing laser photolysis-laser induced fluorescence system based on kOH-NLM algorithm Y. Wang et al. 10.1016/j.snb.2024.136798
- Long-term trend of ozone pollution in China during 2014–2020: distinct seasonal and spatial characteristics and ozone sensitivity W. Wang et al. 10.5194/acp-22-8935-2022
- Vertical changes in volatile organic compounds (VOCs) and impacts on photochemical ozone formation X. Li et al. 10.5194/acp-25-2459-2025
Latest update: 08 Jul 2025
Short summary
We designed a new reactor for measurements of OH reactivity (i.e., OH radical loss frequency) based on the comparative reactivity method under
high-NOx conditions, such as in cities. We performed a series of laboratory tests to evaluate the new reactor. The new reactor was used in the field and performed well in measuring OH reactivity in air influenced by upwind cities.
We designed a new reactor for measurements of OH reactivity (i.e., OH radical loss frequency)...
