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Organotin compounds in precipitation, fog and soils of a forested ecosystem in Germany

Title data

Huang, Jen-How ; Schwesig, David ; Matzner, Egbert:
Organotin compounds in precipitation, fog and soils of a forested ecosystem in Germany.
In: Environmental Pollution. Vol. 130 (2004) Issue 2 . - pp. 177-186.
ISSN 1873-6424
DOI: https://doi.org/10.1016/j.envpol.2003.12.012

Abstract in another language

Organotin compounds (OTC) are highly toxic pollutants and have been mostly investigated so far in aquatic systems and sediments. The concentrations and .uxes of di.erent organotin compounds, including methyl-, butyl-, andoctyltin species in precipitation and fog were investigated in a forested catchment in NE Bavaria, Germany. Contents, along with the vertical distribution and storages in two upland and two wetland soils were determined. During the 1-year monitoring, the OTC concentrations in bulk deposition, throughfall and fog ranged from 1 ng Sn l-1 to several ten ng Sn l-1, but never over 200 ng Sn l-1. The OTC concentrations in fog were generally higher than in throughfall and bulk deposition. Mono-substituted species were the dominant Sn species in precipitation (up to 190 ng Sn l-1) equaling a .ux of up to 70 mg Sn ha-1 a-1. In upland soils, OTC contents peaked in the forest .oor (up to 30 ng Sn g-1) and decreased sharply with the depth. In wetland soils, OTC had slightly higher contents in the upper horizons. The dominance of mono-substituted species inprecipitation is well re.ected in the contents and storages of OTC in both upland and wetland soils. The ratios of OTC soil storages to the annual throughfall .ux ranged from 20 to 600 years. These high ratios are probably due to high stability and low mobility of OTC in soils. No evidence was found for methylation of tin in the wetland soils. Incomparison with sediments, concentrations and contents of organotin in forest soils are considerably lower, and the dominant species are less toxic. It is concluded that forested soils may act as sinks for OTC deposited from the atmosphere.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: BAYCEER18543
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Chair Soil Ecology
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Former Professors > Chair Soil Ecology - Univ.-Prof. Dr. Egbert Matzner
Research Institutions > Research Centres > Bayreuth Center of Ecology and Environmental Research- BayCEER
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences
Research Institutions
Research Institutions > Research Centres
Result of work at the UBT: Yes
DDC Subjects: 500 Science
Date Deposited: 13 Aug 2015 06:12
Last Modified: 16 Jan 2018 12:38
URI: https://eref.uni-bayreuth.de/id/eprint/17998