To promote international collaboration on tropospheric atmospheric oxidation capacity and state-of-the-art radical measurements, the Tropospheric atmospheric Oxidation capacity observation Network (TropOxNet) will host the 6th International Workshop on Frontiers in Atmospheric Radical Measurements in Beijing, China, on 22–24 November 2025.

The workshop will bring together leading experts and early-career scientists from across the world to discuss recent advances in:

· Cutting-edge techniques and instruments for detecting atmospheric radicals (OH, HO₂, RO₂, NO₃, etc.)

· Measurements and evaluation of radical budgets and OH reactivity

· Applications of airborne, ground-based and indoor/outdoor field observations

· The role of radicals in atmospheric oxidation processes and the formation of complex air pollution, supported by numerical modeling

Workshop at a glance:

· Dates: 22–24 November 2025

o 22 November: Registration & Welcome Dinner

o 23-24 November: Scientific Programme

· Venue: Beijing, China (detailed venue and access information are provided in the workshop handbook)

Colleagues and students who are interested in atmospheric radical measurements, atmospheric oxidation capacity, and complex air pollution formation are warmly invited to participate.

For the detailed programme, list of speakers and registration information, please refer to the Meeting Handbook shared from us(gongyj09@pku.edu.cn).