Interim Baseline Radiological Investigation Report
November14, 2012
Bear Lodge Project, for Rare Element Resources, Ltd.
Rev.1
46
Table 8.6. PM
10
Concentrations Measured at Bear Lodge AMS Locations
Location
Start Date
End Date
Filter No.
Filter Weight
(g)
Volume
(scm)
Concentration
(µg/m
3
)
Mean
(µg/m
3
)
Maximum
(µg/m
3
)
% of
Standard
(Mean)
AMS-01
2/16/2012
2/17/2012
58524
-0.0010
1631
-0.61
23.8
61.2
15.9
3/12/2012
3/13/2012
58579
0.0240
1633
14.70
4/9/2012
4/10/2012
58587
0.0254
1631
15.57
5/7/2012
5/8/2012
58595
0.0107
1632
6.56
6/4/2012
6/5/2012
58679
0.0282
1636
17.24
7/2/2012
7/3/2012
58692
0.0983
1605
61.26
7/30/2012
7/31/2012
58760
0.0852
1633
52.17
AMS-02
2/21/2012
2/22/2012
58575
-0.0003
1727
-0.17
2.5
4.5
1.7
3/21/2012
3/22/2012
58582
0.0054
1638.14
3.30
4/18/2012
4/19/2012
58590
0.0032
1631.01
1.96
5/16/2012
5/17/2012
58598
Filter Damage
1719.10
-
6/13/2012
6/14/2012
58682
0.0077
1699.98
4.53
7/11/2012
7/12/2012
58698
0.0111
4981.18
2.23
8/8/2012
8/9/2012
58766
0.0116
3432.44
3.38
AMS-03
3/7/2012
3/8/2012
58578
0.0041
1671.37
2.45
8.3
27.7
5.5
3/26/2012
3/27/2012
58583
0.0018
2010.88
0.90
4/23/2012
4/24/2012
58591
0.0029
1889.37
1.53
5/21/2012
5/22/2012
58675
0.0215
1565.94
13.73
6/20/2012
6/21/2012
58684
0.0056
1647.26
3.40
7/16/2012
7/17/2012
58750
0.0138
1652.28
8.35
8/15/2012
8/16/2012
58768
0.0457
1646.99
27.75
AMS-04
2/8/2012
2/9/2012
58521
Filter Damage
697.64
-
12.7
25.6
8.5
4/4/2012
4/5/2012
58586
0.0175
1631.54
10.73
5/2/2012
5/3/2012
58594
0.0149
1620.74
9.19
5/30/2012
5/31/2012
58678
0.0090
1634.23
5.51
6/27/2012
6/28/2012
58689
0.0411
1606.03
25.59
7/27/2012
7/28/2012
58758
Filter Damage
1635.00
-
Notes:
a
Filter damaged
PM
10
= particulate matter, diameter less than 10 microns
scm = standard cubic meters
µg/m
3
= micrograms per cubic meter
