The Master Chemical MechanismVERSION 3.3.1MCMv3.2 Archive site |
The Master Chemical Mechanism (MCM) is a near-explicit chemical mechanism which describes the detailed gas-phase chemical processes involved in the tropospheric degradation of a series of primary emitted volatile organic compounds (VOCs). Currently, the degradation of methane and 142 non-methane VOCs is represented.
The MCM was originally developed to provide accurate, robust and up-to-date information concerning the role of specific organic compounds in ground-level ozone formation in relation to air quality policy development in Europe. However, it also provides a research tool for investigating other areas where a detailed representation of the chemistry is required, e.g. the generation of distributions of speciated radical and closed-shell intermediates formed during VOC degradation.
The main intention of this web site is to provide a flexible, easily utilised platform for the MCM that is readily accessed by the research and user communities, and to help promote its development and validation.
Browse the mechanismView the list of primary VOCs from which you can navigate through the mechanism either from reactants to products, or vice-versa. Help |
Construction methodologyDetailed information about the MCM and its history. New in MCMv3.3.1 |
Search the mechanismEnter a SMILES string or MCM name to jump straight to matching species in the mechanism. Help |
MCM WorkshopsInformation and presentations from the MCM development and user workshops. |
Extract a subsetSelect your own list of primary species and extract a complete mechanism for them. Mechanisms can be viewed as HTML or exported in a range of formats. Help |
TutorialsLearn more about how to use the MCM. Tutorials are available on using the MCM with either AtChem Online or FACSIMILEAtChem Online Tutorial Facsimile Tutorial |
DownloadFACSIMILE input files for box model and trajectory model runs are available for current and previous versions of the MCM. |
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EUPHORE Chamber SimulationsNotes on simulating EUPHORE chamber experiments. |
CitationDetails of the correct citation for MCM |
ToolsVarious tools for use with the MCM |
LinksUseful tropospheric chemistry links. |
CRIAccess to the Common Representative Intermediates mechanism (CRI v2) via a parallel searchable and extractable facility | MCM ArchiveArchived website for MCMv3.2 |
FeedbackJoin the MCM mailing list or contact the maintainers directly. |
