Effective realization of abatement measures can reduce HFC-23 emissions

<p>Atmospheric observations (mole fractions) of halogenated greenhouse gases (HFC-23 (CHF₃), PFC-318 (c-C₄F₈), HCFC-22 (CHClF₂), HCFC-21 (CHCl₂F), HFC-4310mee (C₅H₂F₁₀), HFC-161 (C₂H₅F)) at the tall tower site at Cabauw, the Netherlands (51.972 &deg;N, 4.927 &deg;E, altitude -0.7 m a.s.l., 207 m a.g.l.), for the duration of a tracer (HFC-161) release experiment (17.06.2022 &ndash; 07.08.2022) within an extended (19.11.2021 &ndash; 7.8.2022) measurement campaign of halogenated greenhouse gases (&gt;60 substances) at the Cabauw tall tower site. The measurements were conducted using a Medusa pre-concentration unit, coupled to gas chromatography and mass spectrometry (GC-MS), as is used within the global AGAGE network (<a href="https://agage.mit.edu/">https://agage.mit.edu/</a>). The HFC-161 tracer was released at 22 km distance from the Cabauw tall tower site, at 4 m a.s.l., 10 m a.g.l, at various flow rates. HFC-161 mole fractions are provided as the measured mole fractions and as the measured mole fractions normalised to the set tracer release flow rates.</p> <p>In addition, a subset of the above-described data is provided. This was used to assess the emissions of the above listed halogenated greenhouse gases from an industrial factory, by reference to the released HFC-161 tracer.</p> <p>The data are related to an article in Nature (https://doi.org/10.1038/s41586-024-07833-y).</p>