An historical record of toxaphene and its congeners in a remote lake in Western Europe
Article Abstract:
Using a dated sediment core from Lochnagar, a mountain lake in Scotland, researchers determined the historical trends in the concentrations of toxaphene.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 2001
User Contributions:
Comment about this article or add new information about this topic:
Identifying sources and mass balance of dioxin pollution in Lake Shinji Basin, Japan
Article Abstract:
Samples from Lake Shinji in coastal Japan are analyzed for dioxins and coplanar PCBs. Sediment analysis revealed high dioxin emissions from herbicides in the 1960s and early 70s, showing about a 2% per year decrease since then. The article's conclusions are supported by numerous charts, graphs and statistics.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 2001
User Contributions:
Comment about this article or add new information about this topic:
Characterization of two major toxaphene components in treated lake sediment
Article Abstract:
H nuclear magnetic resonance and mass spectrometries were used to characterize the structures of a hexachlorobornane and a heptachlorobornane from the sediment of two lakes in Alberta, Canada. They were both treated by toxaphene as a pesticide in the early 1960s. Slices from lake sediments dating to the early 1960s showed the highest toxaphene concentrations. The chromatographic pattern in these slices resemble that of the toxaphene standard. More recent slices showed a significant reduction in the number of chlorinated bornane peaks.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1996
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: The historical record of atmospheric pyrolytic pollution over Europe registered in the sedimentary PAH from remote mountain lakes
- Abstracts: Anaerobic bioremediation of benzene under sulfate-reducing conditions in a petroleum-contaminated aquifer. Study of thermally immobilized Cu in analogue minerals of contaminated soils
- Abstracts: Changes in deposition of phytoplankton constituents in a Ca(2+) polluted lake. Kinetics of Cr(VI) reduction by carbonate green rust
- Abstracts: Stable nitrogen isotopes in waterfowl feathers reflect agricultural land use in western Canada. Determination of perchlorate in tobacco plants and tobacco products
- Abstracts: A mass spectrometric system for the analysis of noble gases and tritium from water samples. Managing the global environment