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 1

The ²³⁸U, ²³⁴U, ²³⁵U, ²³²Th, ²²⁶Ra, ²²⁸Ra, ²²⁴Ra, ²¹⁰Pb, and ²¹⁰Po concentrations (in Bq kg⁻¹) in samples collected from the coal power plant, steel-making industry, and refractory material industry in Italy in 2003 (the ²³²Th concentrations were obtained from Zampieri et al., 2004 [5]).

Sample code	Sampling Site	Sample species	^238U	^234U	^235U	^232Th	^226Ra	^228Ra	^224Ra	^210Pb	^210Po
COD 1/A	Coal power plant GE	Bottom ash in winter 2001	92.0±5.1	92.1±5.1	4.49±0.33	—	91.3±4.7	74.9±4.8	29.7±3.4	43.6±1.8	87.2±4.9
COD 2/A	Coal power plant GE	Bottom ash in autumn 2000	48.2±1.6	57.7±1.8	2.58±0.22	—	45.6±2.4	29.6±2.5	49.9±4.7	25.7±1.1	49.7±3.0
COD 3/A	Coal power plant GE	Fly ash in autumn 2000	88.8±4.8	92.4±4.9	4.06±0.64	—	73.7±3.8	52.5±3.8	85.8±6.8	75.8±3.2	74.6±4.1
COD 4/A	Coal power plant Vado Ligure	Fly ash in spring 2000	154±6	154±6	7.83±0.69	—	142±7	89.1±5.9	155±11	143±6	161±9
COD 5/A	ILVA steel plant GE	Converter electrofilter dust	4.77±0.24	4.77±0.24	0.21±0.03	—	8.08±0.80	1.60±0.83	2.08±1.14	292±13	444±24
COD 6/A	ILVA steel plant GE	Blast furnace dust	10.0±0.8	11.1±0.9	0.40±0.21	—	8.89±0.87	5.45±1.01	7.75±1.79	43.4±1.8	61.5±5.0
COD 1	Refractory sepr	Zirconium sand	4215±205	4175±203	214±17	517±31	3878±167	678±32	1489±93	2908±119	3387±187
COD 2	Refractory sepr	Melting furnace dust	327±16	323±16	13.2±1.8	27.0±1.6	92.9±4.7	17.9±1.8	46.3±4.9	17076±701	36953±1818
COD 4	Refractory sepr	Product 1	1677±78	1639±77	72.4±4.3	310±19	1790±78	397±23	544±38	882±36	1004±55
COD 5	Refractory sepr	Product 2	1629±87	1655±89	75.7±5.1	262±16	1617±70	272±21	405±33	687±28	668±37
COD 6	Refractory sepr	Product 3	1776±83	1753±82	93.8±6.5	250±15	1596±69	281±20	423±32	1198±49	1015±47
COD 7	Refractory sepr	Product 4	25.5±1.4	24.7±1.4	1.41±0.15	2.00±0.14	17.2±1.2	6.01±1.00	7.45±1.67	17.6±0.8	45.1±2.4
COD 8	Refractory sepr	Grinding waste dust	1320±57	1308±56	59.1±4.2	178±11	1262±54	203±11	311±26	992±41	1134±58
COD 9	Refractory sepr	Depuration sludge	1662±76	1653±75	74.3±5.2	238±14	1483±63	235±14	662±52	1000±41	1145±61