liu.seSearch for publications in DiVA
Change search
ReferencesLink to record
Permanent link

Direct link
Halogenated organic matter in precipitation
Linköping University, The Tema Institute, Department of Water and Environmental Studies. Linköping University, Faculty of Arts and Sciences.
1998 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

Deposition in rain and snow plays a crucial role in the regional and global redistribution of a great variety of substances. This thesis is devoted to chemical characterisation and identification of the halogenated organic compounds that are most widespread in rain and snow. The largest amounts of such matter were found in fractions of relatively polar and non-volatile to semivolatile compounds. In particular, a significant part of the organohalogens could be attributed to alkaline-labile organic bases. Moreover, determination of individual organically bound halogens showed that chloroorganics were more abundant than brominated and iodinated organic compounds. Gas chromatographic analysis of specific compounds revealed that the chloroorganics that were found in the largest amounts in the analysed precipitation samples have thus far received little attention from environmental scientists. Dichloronitromethane, which was often present in higher concentrations than any other volatile chloroorganic, has previously not been reported to occur in the ambient environment. A flame retardant, tris(2-chloroethyl)phosphate, was among the most prevalent extractable chloroorganics, and chloroacetic acids were the predominant chloroorganics in the fraction of carboxylic acids. The analytical procedures used included different fractionation methods, (filtration, purging, evaporation and solid phase extraction), pyrolysis, and detection techniques, such as gas chromatography combined with either atomic emission detection (GC-AED) or mass spectrometry (GC-MS). In addition, the group parameters AOX, AOCI, AOBr and AOI (adsorbable organic halogens, chlorine, bromine and iodine, respectively) were determined.

Place, publisher, year, edition, pages
Linköping: Linköpings universitet , 1998. , 54 p.
Linköping Studies in Arts and Science, ISSN 0282-9800 ; 176
National Category
Social Sciences Interdisciplinary
URN: urn:nbn:se:liu:diva-35356Local ID: 26402ISBN: 91-7219-232-1OAI: diva2:256204
Public defence
1998-05-28, Hörsal Planck, Fysikhuset, Universitetsområdet Valla, Linköping, 10:15 (Swedish)
Papers, included in the Ph.D. thesis, are not registered and included in the posts from 1999 and backwards.Available from: 2009-10-10 Created: 2009-10-10 Last updated: 2012-07-10Bibliographically approved

Open Access in DiVA

No full text

By organisation
Department of Water and Environmental StudiesFaculty of Arts and Sciences
Social Sciences Interdisciplinary

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 489 hits
ReferencesLink to record
Permanent link

Direct link