Sample code Sampling site Aerodynamic diameter, μm Po yield, % 210Po Pb yield, % 210Pb 210Po/210Pb AP7 Via Machiavelli ≤ 2.5 92.5 130 ± 6 84.5 975 ± 41 0.133 AP8 Via Machiavelli ≤ 2.5 96.9 214 ± 9 85.2 1054 ± 45 0.203 AP9 Via Machiavelli ≤ 2.5 90.2 83.5 ± 4.2 91.0 362 ± 15 0.231 AP10 Cisi ≤ 2.5 99.8 75.0 ± 3.7 90.0 464 ± 20 0.162 AP11 Cisi ≤ 2.5 96.6 65.9 ± 6.8 90.3 444 ± 20 0.148 AP12 Cisi ≤ 2.5 96.7 45.8 ± 2.7 82.8 298 ± 13 0.154 AP1 Via Machiavelli ≤ 10 91.2 131 ± 7 94.8 1083 ± 46 0.121 AP2 Via Machiavelli ≤ 10 96.2 226 ± 11 91.4 1099 ± 46 0.206 AP3 Via Machiavelli ≤ 10 100.0 77.9 ± 3.8 95.8 358 ± 15 0.217 AP4 Cisi ≤ 10 93.0 81.5 ± 3.9 91.4 484 ± 21 0.169 AP5 Cisi ≤ 10 91.6 77.2 ± 7.5 90.3 520 ± 23 0.149 AP6 Cisi ≤ 10 100.1 43.1 ± 2.0 87.2 331 ± 14 0.130 AP13 CSM Roma ≤ 10 93.1 48.5 ± 3.3 84.2 399 ± 17 0.122 Mean ± 1SD Range - - - - 95.2 ± 3.5 90.2-100.1 100 ± 60 43.1-226 89.1 ± 4.1 82.8-95.8 605 ± 318 298-1099 0.165 ± 0.038 0.121-0.231

Table 4: The 210Po and 210Pb activity concentrations in μBq m-3 in atmospheric particulate samples AP 1-12 collected at Taranto in 11-17 Nov. 2008 and AP 13 at CSM Roma in 19-29 Nov. 2008 and calculated at the determination time of 9-19 Dec. 2008.

Goto home»