Articles | Volume 14, issue 3
Atmos. Meas. Tech., 14, 2285–2298, 2021
https://doi.org/10.5194/amt-14-2285-2021
Atmos. Meas. Tech., 14, 2285–2298, 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 et al.

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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.