× Information on this section of ECOLEX comes from the InforMEA Portal which compiled information from MEA Secretariats with the support of the European Union. The accuracy of the information displayed is the responsibility of the originating data source. In case of discrepancy the information as displayed on the respective MEA website prevails. Decision I/10: Characteristics of relevant substances Document type Decision Reference number I/10 Date May 2, 1989 SourceUNEP, InforMEA Status Active Subject Waste & hazardous substances, Air & atmosphere Treaty Montreal Protocol on Substances that Deplete the Ozone Layer (Sep 16, 1987) Meeting Website ozone.unep.org Abstract The First Meeting of the Parties decided in Dec. I/10 to request the Panel for Scientific Assessment to give full consideration to ODPs, greenhouse-warming potential and atmospheric life-time of the various atmospheric constituents whether controlled or not, and advise the Parties as to the environmental characteristics, both currently and in the light of projections of future production and emission, of all relevant atmospheric constituents. In this regard, particular attention should be paid to potential substitutes for the presently controlled substances, particularly HCFC-22. Similarly, the importance of methyl chloroform and carbon tetrachloride in controlling the volume of atmospheric ozone should be quantified.