The Radiological Impact of ²¹⁰Pb and ²¹⁰Po Released from the Iron- and Steel-Making Plant ILVA in Taranto (Italy) on the Environment and the Public

Table 5

Experimental values of ²¹⁰Pb activity concentrations (corrected to the date of 1st January 1993) in the IAEA-315 Marine Sediment*.

Sample no.	Sample weight, g	Pb yield, %	^210Pb, Bq kg^−1
IAEA-315-1	2.44352	91.7	32.7±1.4
IAEA-315-2	2.47696	96.2	32.7±1.4
IAEA-315-3	2.45552	88.6	29.4±1.3
IAEA-315-4	2.53752	90.0	28.8±1.3
IAEA-315-5	2.55880	93.4	30.9±1.3
IAEA-315-6	2.52952	91.7	29.6±1.3
Mean ± 1SD		91.9±2.6	30.7±1.7
Range	2.44352−2.47696	88.6−96.2	28.8−32.7

 *The recommended value (95% confidence interval) of ²¹⁰Pb is 30.1 (26.0–33.7).