Figure 13 Activity concentrations of 137Cs (Bq kg-1 dw) in sectioned (0-1, 1-3 and 3-6 cm) sediment cores from stations NJ13, NJ14 and NJ28. Average depths of each section are plotted. Activity concentrations below detection limits are shown with open symbols. The detection limit is plotted. Analytical uncertainties are given as ±2σ .
