Objective
The objectives are to identify uncertainties regarding the potential environmental effects of the proposed substitutes of the current used CFCs, eg, hydrochlorofluorocarbons and hydrofluorocarbons.
The data obtained in this project have greatly contributed to demonstrate that the secondary degradation products of the halocarbons, especially the HCFCs, have a negligible effect on stratospheric ozone. The rate constant data provided for the primary reaction with OH have been used to determine the lifetimes of the halocarbons, which are key parameters in the calculation of the ozone depletion potential and greenhouse warming potential for these compounds.
The project is concerned with the kinetics and mechanisms of oxidation of chlorine and bromine containing compounds under atmospheric conditions. For an accurate assessment of the ozone depletion potential the degradative oxidation mechanisms of several alternative CFCs products will be investigated, with particular emphasis on the determination of tropospheric sinks for their degradation intermediates.
The rate constants will be determined for a number of these intermediates.
The following processes will be investigated:
reactions of hydroxylradicals with halogenated alkanes and aldehydes;
absorption cross sections and photolysis for halogenated carbonyl compounds;
mechanisms for the oxidation of halogenated alkanes.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- natural sciences chemical sciences electrochemistry electrolysis
- natural sciences earth and related environmental sciences environmental sciences ozone depletion
- natural sciences chemical sciences inorganic chemistry halogens
- natural sciences earth and related environmental sciences atmospheric sciences meteorology troposphere
- natural sciences chemical sciences organic chemistry organohalogen compounds
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Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Topic(s)
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Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
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Funding Scheme
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Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Coordinator
4 DUBLIN
Ireland
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.