Publication Date:
2023-08-22
Description:
Lake sediment chronologies of ten lakes in northeastern Germany (Arendsee [AS], Carwitzer See [CR], Feldberger Haussee [FH], Breiter Luzin [BL], Schmaler Luzin [SL], Oberuckersee [OR], Scharmützelsee [PL], Stechlinsee [ST], Tiefwarensee [TF], Großer Wummsee [WM]) were created to reconstruct anthropogenic activity over the past 100 years starting from 2015 as the most present date. Collection of samples took place between 2015-07-10 and 2015-09-04 for all but one lake which was re-sampled in December 2016 (ST). Cores of lake sediments were collected using a gravity corer (90 mm diameter; UWITEC, Mondsee, Austria). Minimum length of the cores was 1 m. Cores were sliced immediately at the shore of each lake into 5 mm (lakes FH and BL) or 10 mm samples (all other lakes). Sliced cores were stored at 4 °C until arrival at the IGB laboratory at Lake Stechlin. There, they were weighed and then frozen at -20 °C for storage until further processing. Loss of ignition was determined using an electric muffle furnace (SNOL 8,2/1100, Utena, Lithuania). Dating of each sliced core horizon was performed by direct gamma assay of isotopes 210Pb and 137Cs of a freeze-dried subsample (1 g). Depending on the lake, a time span starting with the sampling year (i.e. 2015/2016) and reaching back to at least the 1950s and at most to pre-1900s was covered. Concentrations of elements (aluminium, arsenic, calcium, cadmium, cobalt, chromium, copper, iron, potassium, magnesium, manganese, molybdenum, sodium, nickel, phosphorus, lead, sulphur, zinc) were determined with microwave-assisted aqua-regia (MAE-AR) extraction in conjunction with inductively coupled plasma-optical emission spectrometry (ICP-OES). Concentrations of organic pesticides DDX (2,4'- and 4,4'- congeners of each dichlorodiphenyltrichloroethane [DDT], dichlorodiphenyldichloroethane [DDD] and dichlorodiphenyldichloroethylene [DDE]), hexachlorobenzene (HCB), HCHs (α-, β-, γ-, δ-hexachlorocyclohexane [HCH]) and trifluralin were extracted applying miniaturized solid-liquid extraction (MISOLEX; Simon et al. 2021, doi:10.1007/s11368-021-03080-0). Extracts were measured with solid-phase microextraction (SPME) and gas chromatography-mass spectrometry (GC-MS).
Keywords:
Accumulation rate per year; Age; AGE; alpha-Hexachlorocyclohexane; Aluminium; Anthropogenic impact; Arendsee; Arsenic; beta-Hexachlorocyclohexane; Brandenburg; Brandenburg, Germany; Breiter Luzin; Cadmium; Calcium; Carwitzer See; Chromium; chronology; Cobalt; Copper; delta-Hexachlorocyclohexane; DEPTH, sediment/rock; dichlorodiphenyldichloroethane (DDD); dichlorodiphenyldichloroethylene (DDE); dichlorodiphenyltrichloroethane (DDT); Dry mass; Dry mass, cumulative; Event label; Feldberger Haussee; gamma-Hexachlorocyclohexane; Gas chromatography - Mass spectrometry (GC-MS); GC; Germany; Gravity corer; Großer Wummsee; Hexachlorobenzene; hexachlorobenzene (HCB); hexachlorocyclohexane (HCH); Inductively Coupled Plasma - Optical Emission Spectrometry (ICP-OES); Iron; LCC-2015_AR; LCC-2015_BL; LCC-2015_CR; LCC-2015_FH; LCC-2015_OR; LCC-2015_PL; LCC-2015_SL; LCC-2015_TF; LCC-2015_WM; LCC-2016_ST; Lead; loss on ignition; Loss on ignition; Magnesium; Manganese; Mecklenburg-West Pomerania; Mecklenburg-West Pomerania, Germany; Molybdenum; Muffel furnace; Nickel; Oberuckersee; organochlorine pesticides (OCPs); ortho,para-Dichlorodiphenyldichloroethane; ortho,para-Dichlorodiphenyldichloroethylene; ortho,para-Dichlorodiphenyltrichloroethane; para,para-Dichlorodiphenyldichloroethane; para,para-Dichlorodiphenyldichloroethylene; para,para-Dichlorodiphenyltrichloroethane; Phosphorus; Potassium; Saxony-Anhalt; Saxony-Anhalt, Germany; Scharmützelsee; Schmaler Luzin; Sodium; Stechlinsee; Sulfur; Tiefwarensee; trace elements; trifluralin; Trifluralin; Zinc
Type:
Dataset
Format:
text/tab-separated-values, 7812 data points
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