Huang, J-H; Schwesig, D; Matzner, E: Organotin compounds in precipitation, fog and soils of a forested ecosystem in Germany, Environmental Pollution, 130, 144-186 (2004)
Abstract:
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-, and octyltin 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 in precipitation 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. In comparison 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.
Upcoming ...



BayCEER Colloquium:
Th. 2019-11-14
Analysis of ozone formation and trend over northern Bavaria by using stochastic and deterministic models
Th. 2019-11-21
Quantification of subsurface properties using the groundwater response to Earth and atmospheric tides
Conferences:
Fr. 2019-11-22
Geoökologie-Tagung 2019
Talk:
Fr. 2019-11-15
Changing the game in Earth Observation - The European Union’s Copernicus programme -
Universitäts-Forum Bayreuth:
We. 2019-11-13 now
Bayreuther Innenstadt und Rotmaincenter: Freund oder Feind? - Betrachtungen aus der Perspektive der Besucher
BayCEER Blog
24.05.2019
Stoichiometric controls of C and N cycling
07.05.2019
Flying halfway across the globe to dig in the dirt – a research stay in Bloomington, USA
07.05.2019
EGU – interesting research and free coffee
16.04.2019
Picky carnivorous plants?
RSS Blog as RSS Feed
Weather research site
Luftdruck (356m): 959.8 hPa
Lufttemperatur: 5.6 °C
Niederschlag: 0.0 mm/24h
Sonnenschein: 5 h/d
Wind (Höhe 17m): 6.7 km/h
Wind (Max.): 12.2 km/h
Windrichtung: SW

...more
Globalstrahlung: 180 W/m²
Lufttemperatur: 2.1 °C
Niederschlag: 0.0 mm/24h
Sonnenschein: <1 h/d
Wind (Höhe 32m): 10.1 km/h

...more
This site makes use of cookies More information