Chloride methylation by plant pectin: an efficient, environmentally significant process

Kalin, R. and Hamilton, J. and McRoberts, C. and Keppler, F. and Harper, D.B. (2003) Chloride methylation by plant pectin: an efficient, environmentally significant process. Science, 301. pp. 206-209. ISSN 0036-8075

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Official URL: http://dx.doi.org/10.1126/science.1085036

Abstract

Atmospheric chloromethane (CH3Cl) plays an important role in stratospheric ozone destruction, but many uncertainties exist regarding the strengths of its sources and sinks and particularly regarding the processes generating this naturally occurring gas. Evidence is presented here that CH3Cl is produced in many terrestrial environments by a common mechanism. Abiotic conversion of chloride to CH3Cl occurs readily in plant material, with the widespread plant component pectin acting as a methyl donor. Significant CH3Cl emissions from senescent and dead leaves were observed at ambient temperatures; those emissions rose dramatically when temperatures increased. This ubiquitous process acting in terrestrial ecosystems and during biomass burning could contribute the bulk of atmospheric CH3Cl.

Creators(s):	Kalin, R., Hamilton, J., McRoberts, C., Keppler, F. and Harper, D.B.;
Item type:	Article
ID code:	8524
Keywords:	emissions, chloromethane, halocarbons, atmosphere, combustion, africa, matter, stratospheric ozone destruction, Chemistry, Engineering (General). Civil engineering (General), General
Subjects:	Science > Chemistry Technology > Engineering (General). Civil engineering (General)
Department:	Faculty of Engineering > Civil and Environmental Engineering Faculty of Law, Arts and Social Sciences > Law School
Depositing user:	Strathprints Administrator
Date deposited:	14 Sep 2009 10:09
Last modified:	03 Sep 2020 01:48
URI:	https://strathprints.strath.ac.uk/id/eprint/8524
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