Author/Editor		Muri, Gregor
Title		Črni ogljik v jezerskih sedimentih
Type		članek
Source		In: Glavič P, Brodnjak-Vončina D, editors. Zbornik referatov s posvetovanja Slovenski kemijski dnevi 2000: 1. in 2. del; 2000 sep 28-29; Maribor. Maribor: FKKT,
Publication year		2000
Volume		str. 320-5
Language		slo
Abstract		Black carbon (BC) concentrations were determined in sediments of five alpine lakes, i. e. Lake Kriško Sup., Lake Ledvica, Lake Krn, Lake Planina and Lovrenška lakes. Organic carbon (OC) was also determined and ratios BC/OC were calculated. Sedimentation rates of sediments were determined by measuring the excess 210Pb activity. A gradient of BC/OC ratios is observed decreasing from the west to the east across Slovenia, caused by precipitation amount, which is also decreasing in the W - E direction. For comparison, black and organic carbon concentrations in the sediment of Lake Bled and in the coastal marine sediment in the Gulf of Trieste were also measured. The main source of black carbon in these sediments is urban pollution.
Descriptors		SEAWATER FRESH WATER GEOLOGIC SEDIMENTS CARBON WATER POLLUTANTS, CHEMICAL LEAD RADIOISOTOPES