Supplementary material to "European HFC emissions evaluated with multiple atmospheric inverse models and UNFCCC national inventories"

S1 Description of measurement datasets not previously published S1.1 CGR Capo Granitola observatory (GAW ID: CGR, 37.5711°N 12.6597°E; 5 m a.s.l.) is located at the southern Sicily coastline facing the Strait of Sicily, at Torretta Granitola (12 km from Mazara del Vallo, 52,000 inhabitants), within the scientific campus of the National Research Council -Institute for the study of Anthropic Impact on Marine Environment (CNR-IAS).The CGR location is strongly affected by air masses originating or passing above the central Mediterranean basin (Tyrrenian Sea), exhibiting a prevalent north-westerly circulation.HFC monitoring started in 2024 measuring HFC-134a, HFC-143a, HFC-152a, HFC-23, HFC-227ea, HFC-236fa, HFC-245fa, HFC-365mfc, HFC-4310mee, PFC-218, and PFC-318.HFC-32 was excluded from further analysis due to a local contamination from several air conditioning systems at the location.Samples were collected at about 6 m above ground using a Synflex sampling line continuously flushed at 2 L min -1 .Measurements were performed every 2 hours with a gas chromatograph-mass spectrometer (GC-MS Agilent 6820 + Agilent 5975C) system in which 800 mL of air samples (both real air and calibration standard) were enriched by a commercial preconcentration system (Markes International Unity-2-AirServer-2) following the method described in Maione et al. [3].Ambient air measurements were regularly calibrated against a whole air standard (working standard) mixture filled at Monte Cimone AGAGE station and in turn traced back on SIO scales against a reference tank obtained from Scripps Institution of Oceanography (SIO).