Feedback reference
F6584
Submitted by
Sven BAUMANN
User type
Public authority
Scope
National
Organisation
German Environment Agency
Organisation size
Large (250 or more)
Country of origin
Germany

To whom it may concern,

We would like to point out two aspects:

1. We recommend a consistent strict ban of ozone depleting substances. This becomes apparent e.g. for the refrigerant 1233zd which has an existing ozone depleting potential (0.00034; Scientific Assessment of Ozone Depletion: 2014, World Meteorological Organization, Global Ozone Research and Monitoring Project—Report No. 55, 416 pp., Geneva, Switzerland, 2014). Despite the ODP>0 the substance will be produced and promoted for several new applications in the field of refrigeration.

2. Recent research has shown that halogenated very short-lived substances (VSLS; e.g. dichloromethane) which has atmospheric lifetimes < six months seem to have a stronger impact on stratospheric ozone depletion than previously thought (Leedham Elvidge, E.C. et al.; Atmos. Chem. Phys., 15, 1939-1958, 2015. Hossaini, R. et al.; Nat Commun. 2017 Jun 27;8:15962, 2017.) Based on these findings in our opinion a broader consideration of non-Montreal Protocol compounds and the evaluation of an additional inclusion of halogenated VSLS would be beneficial to improve the protection and regeneration of ozone layer.

Yours faithfully

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