Articles | Volume 14, issue 3
https://doi.org/10.5194/amt-14-2285-2021
https://doi.org/10.5194/amt-14-2285-2021
Research article
 | 
24 Mar 2021
Research article |  | 24 Mar 2021

The improved comparative reactivity method (ICRM): measurements of OH reactivity under high-NOx conditions in ambient air

Wenjie Wang, Jipeng Qi, Jun Zhou, Bin Yuan, Yuwen Peng, Sihang Wang, Suxia Yang, Jonathan Williams, Vinayak Sinha, and Min Shao

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Latest update: 13 Jun 2024
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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.