2026 Meetings NEWS

8 -10 April – TF HTAP meeting – presentations

7 April 202624 April 2026

Annual meeting of the Task Force on Hemispheric Transport of Air Pollution

Session 1: MCHgMAP

Subject of the presentation	Presenter
MCHgMAP: Project overview and progress	Oleg Travnikov
Spatial distribution and variability of atmospheric Hg	Eric Roy
Environmental drivers of observed atmospheric Hg trends	Ari Feinberg
Anthropogenic emissions drivers of observed atmospheric Hg trends	Andrei Ryjkov
Case study: Atmospheric reactive Hg	Jan Gačnik
Observational based spatio-temporal Hg variability in the global ocean	Anne Soerensen
Modeling Hg levels and trends in the ocean	Johannes Bieser
Cumulative anthropogenic impacts of past and future emissions and releases on the global mercury cycle	Connor Olson
Key findings and future plans	Oleg Travnikov

Session 2: PFAS

Subject of the presentation	Presenter
Introduction and status	Johannes Bieser Martin Ramacher
Status observations chapter	Hanna Joerss Anne Sorensen
Status modelling chapter	Emma D’Ambro Freja Osterstrom
Status emissions chapter	Martin Ramacher
World Café: Scientific and Policy Goals of the model intercomparison study	Volker Matthias

Session 3: HTAP3-OPNS

Subject of the presentation	Presenter
OPNS: Project overview and progress	Tim Butler
Results from the EMEP model at MSC-W / Met.Norway	Hilde Fagerli
Results from the IFS-COMPO model at ECMWF	Philipp Weiss
Results from GEOS-Chem at CIEMAT	Coralina Hernandez Trujllo Marta Garcia Vivanco
Results from CAM-chem at RIFS Potsdam	Tabish Ansari
Results and analysis from the EMEP model at the JRC	Alexander de Meij Claudio Belis
Emulation of source/receptor relationships	Oliver Wild

Session 4: HTAP3-Fires

Subject of the presentation	Presenter
HTAP Fires overview and status updates	Cyndi Whaley
Early insights on CO fire emissions sensitivity using models and observations	Helene Peiro
WRF-Chem experiments for HTAP3 Fires and initial analysis on emissions	Min Huang
Case study results from WRF-CHIMERE	Ludovico Di Antonio
GFAS4HTAP updates	Johannes Kaiser
Future fire emissions updates	Douglas Hamilton Elisa Bergas
Arctic PAH Air Concentration Trend preliminary analysis and biomass burning issues	Krystyna Koziol Paul Bartlett
PCDD/F Emissions and Simulations	Reza Gholizadeh

Share