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 6

The ²¹⁰Po and ²¹⁰Pb concentrations in Bq kg⁻¹ and iron concentrations in raw material samples collected from the ILVA Taranto on 5 May 2009.

Sample type	Sample weight, g	Po yield, %	^210Po	Pb yield, %	^210Pb	^210Po/^210Pb	Iron, %
Coke	5.27951	94.5	13.4±1.3	99.1	16.4±0.7	0.819	0.883±0.005
Limestone	3.25234	99.5	11.7±0.6	97.3	12.1±0.6	0.965	0.0207±0.0010
Lime	3.05868	94.7	12.2±0.7	98.5	12.8±0.6	0.950	0.178±0.001
Iron mineral (MIN) 1	1.37134	84.8	13.3±1.1	99.1	12.4±0.8	1.072	65.5±0.2
Iron mineral (MIN) 2	1.42930	81.6	17.9±1.4	100	16.8±0.9	1.067	58.6±0.2
Iron mineral (MIN) 3	3.42674	73.4	3.46±0.45	89.2	3.5±0.3	0.991	66.6±0.2
Homogenized sample	1.25528	89.5	26.6±2.3	100	32.0±1.5	0.833	58.1±0.2
Mixture of agglomeration	1.17245	69.0	30.0±2.5	100	27.7±1.4	1.081	52.7±0.1
Mean ± 1SD	—	85.9±10.8	16.1±8.6	97.9±3.6	16.7±9.1	0.972±0.103	—
Range	1.17245–5.27951	69.0–99.3	3.46–30.0	89.2–100	3.49–32.0	0.819–1.08	0.0207–66.6