1 research outputs found
Accumulation of Metals in Sapropel
Concentrations of 13 metallic elements were
determined in organic rich lake sediment profiles from three
lakes – Padēlis, Pilcines and Pilveļu (Latvia). Concentrations of
metallic elements are related to the basic chemical properties of
sapropel– moisture, organic matter, carbonate content and
elemental composition. Sapropel from the studied lakes is not
polluted by industrial sources and can be considered as
prospective material for agricultural and other applications. The
heavy metal concentration depends on the organic matter content
of the sediment and the geochemical properties (composition of
minerals, rate of their weathering, hydrological and
climatological conditions) of the lakes’ catchment areas.
Increased concentrations of Pb and Cd are found in upper layers
of sediments from anthropogenic pollution