title: Atmospheric pollution history at Linfen (China) uncovered by magnetic and chemical parameters of sediments from a water reservoir.
abstract: We studied magnetic and chemical parameters of sediments from sediments of a water reservoir at Linfen (China) in order to quantitatively reconstruct the atmospheric pollution history in this region. The results show that the main magnetic phases are magnetite and maghemite originating from the surrounding catchment and from anthropogenic activities, and there is a significant positive relationship between magnetic concentration parameters and heavy metals concentrations, indicating that magnetic proxies can be used to monitor the anthropogenic pollution. In order to uncover the atmospheric pollution history, we combined the known events of environmental improvement with variations of magnetic susceptibility (χ) and heavy metals along the cores to obtain a detailed chronological framework. In addition, air comprehensive pollution index (ACPI) was reconstructed from regression equation among magnetic and chemical parameters as well as atmospheric monitoring data. Based on these results, the atmospheric pollution history was successfully reconstructed.
authors.affiliation: State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China; University of Chinese Academy of Sciences, Beijing 100049, China.
authors.forename: Mingming
authors.initials: M
authors.lastname: Ma
authors.affiliation: State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China. Electronic address: hu_shouyun@hotmail.com.
authors.forename: Shouyun
authors.initials: S
authors.lastname: Hu
authors.affiliation: Department of Geosciences, University of Tübingen, 72074 Tübingen, Germany.
authors.forename: Liwan
authors.initials: L
authors.lastname: Cao
authors.affiliation: Department of Geosciences, University of Tübingen, 72074 Tübingen, Germany.
authors.forename: Erwin
authors.initials: E
authors.lastname: Appel
authors.affiliation: State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China; University of Chinese Academy of Sciences, Beijing 100049, China.
authors.forename: Longsheng
authors.initials: L
authors.lastname: Wang
mesh_terms: D000397:Air Pollution / Q000032:analysis / Q000266:history; D002681:China; D004784:Environmental Monitoring; D019015:Geologic Sediments / Q000737:chemistry*; D049673:History, 20th Century; D049674:History, 21st Century; D008280:Magnetics; D019216:Metals, Heavy / Q000737:chemistry; D014874:Water Pollutants, Chemical / Q000737:chemistry*; D014877:Water Pollution, Chemical / Q000032:analysis / Q000266:history
chemical_list: D019216:Metals, Heavy; D014874:Water Pollutants, Chemical
keywords: Atmospheric pollution; Environmental magnetism; Heavy metals; Reservoir sediments; Ridge regression