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Huang, Jen-How ; Klemm, Otto:
Atmospheric speciation of ionic organotin, organolead and organomercury compounds in NE Bavaria (Germany).
In: Atmospheric Environment.
Bd. 38
(2004)
Heft 30
.
- S. 5013-5023.
ISSN 1878-2442
DOI: https://doi.org/10.1016/j.atmosenv.2004.06.015
Abstract
Organotin (OTC), organolead (OLC) and organomercury (OMC) compounds are highly toxic and exhibit a potential negative effect on terrestrial ecosystems. Individual ionic OTC, OLC and OMC compounds were identified and their concentrations determined in the gas phase, aerosol particles, and bulk precipitation at a rural (Waldstein) and an urban (Bayreuth city) site in NE-Bavaria. At both sites, butyltins, methyltins, octyltins, trimethyllead and monomethylmercury concentrations in the gas phase were (determined as corresponding Sn, Pb and Hg concentrations, respectively) with the dominance of tri- and di-substituted OTC and octyltins. The same species were found in bulk precipitation with concentrations (Sn, Pb, Hg) with the dominance of mono-substituted OTC. In aerosols, only butyltins, dimethyltin and monomethyltin () were found and mono-substituted OTC predominated. No significant difference of concentrations of organometallic compounds in the atmosphere at the two sites was found. For OTC, the washout factors was in the order: mono-di->tri-substituted OTC, and the gas/particle partition coefficients were mono-di-tri-substituted OTC. The distribution spectrum of OTC in aerosols showed the strong linkage of OTC to the long-lived particles and high accumulation of OTC in the filter at the Waldstein site. The results indicate that long-range-transport of organometallic compounds in the atmosphere is an important source at our both sites. Aerosol particles may serve as a sink in the chemical cycles of OTC in the atmosphere, especially for monomethyltin and monobutyltin. Keywords: Ionic organotin; Trimethyllead; Monomethylmercury; Gas; Aerosol; Bulk precipitation; Waldstein; Bayreuth
Weitere Angaben
| Publikationsform: | Artikel in einer Zeitschrift |
|---|---|
| Begutachteter Beitrag: | Ja |
| Zusätzliche Informationen: | BAYCEER20683 |
| Institutionen der Universität: | Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Geowissenschaften > Professur Mikrometeorologie Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Geowissenschaften > Lehrstuhl Bodenökologie Forschungseinrichtungen > Zentrale wissenschaftliche Einrichtungen > Bayreuther Zentrum für Ökologie und Umweltforschung - BayCEER Fakultäten Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Geowissenschaften Forschungseinrichtungen Forschungseinrichtungen > Zentrale wissenschaftliche Einrichtungen |
| Titel an der UBT entstanden: | Ja |
| Themengebiete aus DDC: | 500 Naturwissenschaften und Mathematik |
| Eingestellt am: | 09 Okt 2015 05:56 |
| Letzte Änderung: | 08 Nov 2023 09:11 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/20233 |