The average TOC content of Lake Wohlen was in the range of 1.14 to 2.03%. The vertical
profiles show that the OC content was generally homogenous (approximately 2%) and that there was no clear decrease with sediment depth as may be expected. The average C/N ratio at the different core was in a range from 10.8 to 14.5 indicating a primarily terrestrial OC source to the sediment.