Depth(cm)	Unsupported210Pb(Bq/g) 
0.5	1.5350
1.5	1.3803
2.5	1.2431
3.5	1.2426
4.5	1.0971
5.5	0.7739
6.5	0.6149
7.5	0.6061
11.5	0.3513
14.5	0.2570
17.5	0.1498
20.5	0.0859
23.5	0.0734