Distances from T.P (km) |
Year |
226Ra (Bq.m-3) |
|
2003 |
Range |
Mean |
< 1.6 |
|
3.5-20 (18) |
7.5 |
1.6 - 5.0 |
|
3.5-72.0(20) |
15.6 |
> 5.0 |
|
3.5-65.3(20) |
12.1 |
|
|
|
|
< 1.6 |
2004 |
3.5-41.4(15) |
11.0 |
1.6 - 5.0 |
|
3.5-29 (17) |
7.5 |
> 5.0 |
|
3.5-25 (11) |
11.5 |
|
|
|
|
< 1.6 |
2005 |
3.5-41.4 (16) |
12.6 |
1.6 - 5.0 |
|
3.5-29 (19) |
7.9 |
> 5.0 |
|
3.5-41.4(10) |
16.3 |
|
|
|
|
< 1.6 |
2006 |
4.0-16.0 (6) |
6.5 |
1.6 - 5.0 |
|
3.5-53 (13) |
9.2 |
> 5.0 |
|
3.5-95 (10) |
22.5 |
|
|
|
|
< 1.6 |
2007 |
3.5-26 (10) |
7.4 |
1.6 - 5.0 |
|
3.5-6.0 (14) |
4.0 |
> 5.0 |
|
3.5- 19.3 (10) |
6.6 |
*Figures in parentheses are the numbers of samples |
