Figure 5 Activity concentrations of 210Pbtot, 226Ra, 228Ra and 228Th (Bq kg-1 dw) in sectioned (0-1, 1-3 and 3-6 cm) sediment cores from stations EGR01, EGR08, EGR09 and EGR10. Results below detection limits are shown as open circles. Average depths of each section are plotted. Analytical uncertainties are given as ±2σ .
