We are pleased to invite you to the ACTRIS CiGas data QA/QC Workshop 2026 for VOC and NOx data, which will be held online from 28 to 30 April 2026.

Important Deadlines

• Data submission for 2025: Please ensure completion by 15 March 2026.
• Registration deadline: Kindly fill out the registration form by 22 April 2026, including:
  • Your name (first name, surname)
  • National Facility
  • Organization
  • Email address

The workshop agenda and the meeting link will be shared with registered participants shortly before the event.

Note:

Please ensure that the responsible person(s) for data submission and QA/QC at your National Facility attend the workshop.

For National Facilities that have already completed labelling step 1a, participation in this workshop is mandatory.

Workshop Content

• During the VOC (28 April 2026) and NOx (30 April 2026) sessions, the submitted data will be discussed.
• National Facilities that have submitted data are expected to give a presentation introducing their station and presenting their data.

Community Meeting – 29 April 2026

As part of the workshop, a Community Meeting will be held on 29 April 2026. We warmly invite participants to contribute scientific talks.

If you are interested in giving a presentation, please contact:

• Katrin Seemeyer (k.seemeyer@fz-juelich.de)
• Ralf Tillmann (r.tillmann@fz-juelich.de)

Kindly include the title and approximate duration of your proposed talk until 14 April 2026.

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We look forward to your active participation in the ACTRIS CiGas data QA/QC Workshop 2026!

Preliminary agenda

28 April 2026 - VOC part

08:30 - 12:00 - Data review (20min/site) - The discussion of each site should be accompanied with a short site presentation.

12:00 - 13:30 - Lunch break

13:30 - 15:00 - Discussion on further CiGas activities for VOCs

                        AOB

29 April 2026 - CiGas Community workshop

agenda not yet available

30 April 2026 - NOx part

08:30 - 10:30 - NOx observations at different sites (15min/site)

11:00 - 11:30 - Visualization of NOx data files submitted to the EBAS data archive

11:30 - 12:00 - Discussion of station data

13:45 - 15:00 - Discussion on further CiGas activities for NOx

                         AOB