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Degradation of ozone-depleting methyl halides in the troposphere characterized by isotopes

Total Cost €


EC-Contrib. €






 DEMETROPIS project word cloud

Explore the words cloud of the DEMETROPIS project. It provides you a very rough idea of what is the project "DEMETROPIS" about.

tion    natural    expand    absorbed    skin    environmentally    reducing    sinks    destruction    frameworks    ch3br    foremost    delineating    apportionment    uvb    understand    radicals    stratospheric    chloride    cfcs    brain    techniques    halides    halogen    layer    fate    methyl    emitted    source    conceptual    canada    cancer    81br    returning    sweden    oxidation    compounds    shield    expertise    sources    protect    combination    genetic    degrada    isotopically    applicable    ozone    counteracts    radiation    post    degradation    gases    discovered    consequently    2h    waved    discrepancies    calculated    stratosphere    earth    13c    bromide    37cl    atmospheric    budget    environment    greenhouse    curtailed    ch3cl    overestimation    career    drain    experiences    start    concerning    therewith    contributors    damage    anthropogenic    mechanisms    hydroxyl    halogenated    skills    otherwise    pollutants    isotope    interpretational    bear    framework    resolve    1970s    halogens    innovative    gaps    life    doctoral   

Project "DEMETROPIS" data sheet

The following table provides information about the project.


Organization address
postcode: 4318

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Germany [DE]
 Project website
 Total cost 159˙460 €
 EC max contribution 159˙460 € (100%)
 Programme 1. H2020-EU.1.3.2. (Nurturing excellence by means of cross-border and cross-sector mobility)
 Code Call H2020-MSCA-IF-2015
 Funding Scheme MSCA-IF-EF-RI
 Starting year 2016
 Duration (year-month-day) from 2016-10-01   to  2018-09-30


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 


 Project objective

The stratospheric ozone layer is an important shield to protect life on earth. Most of the short-waved UVB radiation is absorbed which otherwise would cause skin cancer and genetic damage. Destruction of the ozone layer by halogen radicals was discovered in the 1970s and consequently production of many halogenated compounds was curtailed. Methyl chloride (CH3Cl) and methyl bromide (CH3Br), important contributors of halogens in the stratosphere, are emitted by both natural and anthropogenic sources but significant gaps remain in the calculated atmospheric budget due to uncertainties concerning formation mechanisms and/or overestimation of degrada-tion processes. In this study a conceptual framework will be developed to apply innovative multi-element isotope analysis (2H, 13C, 81Br, 37Cl) for delineating sources and sinks of methyl halides, reducing the budget uncertainties and discrepancies. The specific aim is to isotopically identify and characterize oxidation of methyl halides by hydroxyl radicals, the main degradation process, both to understand the fate of these important pollutants in the environment but foremost to resolve the impact on any future isotope based approach for source apportionment. The results of this project will also have broader impact as the information and interpretational frameworks developed will be applicable to research on other environmentally relevant gases, e.g. greenhouse gases. Returning to the EU the applicant will expand his own doctoral experiences obtained in Sweden, and bring to the proposed work his innovative experiences and techniques on CFCs developed through his current post-doctoral research in Canada. Therewith this project not only counteracts brain drain but, based on the unique combination of expertise of all contributors, the applicant will be able to bring his past and current research skills and insight to bear to start developing his own research career within the proposed field.


year authors and title journal last update
List of publications.
2017 Axel Horst, Julian Renpenning, Hans-Hermann Richnow, Matthias Gehre
Compound Specific Stable Chlorine Isotopic Analysis of Volatile Aliphatic Compounds Using Gas Chromatography Hyphenated with Multiple Collector Inductively Coupled Plasma Mass Spectrometry
published pages: 9131-9138, ISSN: 0003-2700, DOI: 10.1021/acs.analchem.7b01875
Analytical Chemistry 89/17 2019-06-13

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The information about "DEMETROPIS" are provided by the European Opendata Portal: CORDIS opendata.

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