Page 12 - Tranchina_alli_2004

212 L. TRANCHINA et al.

TABLE VIII Specific activities (Bq kg21 dry weight) in sediments.

40K 214Bi 228Ac

Egadi 33 + 3 12 + 1 1.7 + 0.2
Trapani 29 + 2 7.9 + 0.6 3.3 + 0.4
Marsala 41 + 3 8.7 + 0.7 3.6 + 0.4
Carini 34 + 3 7.7 + 0.6 2.5 + 0.3

Note: See main text for details on the lowest detection limits (LDL). Uncertainty measurements
(+s) are also shown.

TABLE IX Specific activities (Bq kg21 dry weight) in Posido-
nia oceanica rhizomes.

40K 214Bi

Egadi 110 + 10 3.1 + 0.4
Station 1 140 + 10 3.4 + 0.4
Station 2 100 + 10 5.0 + 0.6
Station 3
Trapani 210 + 20 2.4 + 0.3
Station 1 140 + 10 3.5 + 0.4
Station 2 120 + 10 2.1 + 0.3
Station 3
Marsala 150 + 20 2.1 + 0.3
Station 1 240 + 20 1.5 + 0.2
Station 2 110 + 10 4.5 + 0.5
Station 3
Carini 350 + 30 ,LDL
Station 1 300 + 30 ,LDL
Station 2 6.1 + 0.7
Station 3 ,LDL

Note: Samples from different transects collected at the same depth have been
analysed as a whole. Uncertainty measurements (+s) are also shown.

TABLE X Specific activities (Bq kg21 dry weight) in Posi-
donia oceanica scales.

40K 210Pb

Egadi 55 + 4 43 + 6
Station 1 65 + 5 57 + 9
Station 2 56 + 4 55 + 8
Station 3
Trapani 74 + 6 60 + 10
Station 1 56 + 4 50 + 8
Station 2 54 + 4 49 + 7
Station 3
Marsala 42 + 3 36 + 5
Station 1 39 + 3 41 + 6
Station 2 34 + 3 47 + 7
Station 3
Carini 47 + 4 90 + 10
Station 1 24 + 2 110 + 20
Station 2 ,LDL 140 + 20
Station 3

Note: Samples from different transects collected at the same depth have
been analysed as a whole. Uncertainty measurements (+s) are also
shown.