Sample No. Sample weight, g Pb yield, % 210Pb, Bq kg-1 IAEA–315-1 2.44 91.7 32.7 ± 1.4 IAEA–315-2 2.48 96.2 32.7 ± 1.4 IAEA–315-3 2.46 88.6 29.4 ± 1.3 IAEA–315-4 2.54 90.0 28.8 ± 1.3 IAEA–315-5 2.56 93.4 30.9 ± 1.3 IAEA–315-6 2.53 91.7 29.6 ± 1.3 Mean ± 1SD Range   2.44-2.48 91.9 ± 2.6 88.6-96.2 30.7 ± 1.7 28.8-32.7 *: The recommended value (95% confidence interval) of 210Pb are 30.1 (26.0-33.7) Bq kg-1.

Table 3: Experimental values of 210Pb activity concentrations (corrected to the date of 1st Jan. 1993) in the IAEA–315 Marine Sediment*.

Goto home»