|
Table 1. Arsenic content (parts per million) means, ranges, and standard deviations for samples from coal beds/zones included in the assessment of Northern and Central Appalachian Basin coal regions on an as-received or remnant moisture, whole-coal basis, by State and coal bed/zone. [nd, no data; no., number.] |
|||||||
|
State |
Coal Bed/Zone |
Mean |
Minimum |
Maximum |
Standard Deviation |
No. of Samples |
|
|
ALL |
Pittsburgh |
12 |
0.33 |
61 |
13 |
140 |
|
|
ALL |
Upper Freeport |
34 |
0.72 |
130 |
25 |
250 |
|
|
ALL |
Lower Kittanning |
19 |
0.13 |
130 |
20 |
190 |
|
|
ALL |
No. 5 Block |
11 |
0.75 |
70 |
14 |
88 |
|
|
ALL |
Stockton and Coalburg |
11 |
0.40 |
79 |
14 |
193 |
|
|
ALL |
Winifrede/Hazard |
8.7 |
0.40 |
58 |
11 |
81 |
|
|
ALL |
Fire Clay |
11 |
0.70 |
53 |
13 |
39 |
|
|
ALL |
Williamson/Amburgy |
28 |
0.61 |
120 |
30 |
37 |
|
|
ALL |
Campbell Creek/Upper Elkhorn No. 3 |
14 |
0.85 |
85 |
19 |
136 |
|
|
ALL |
Upper Elkhorn Nos. 1 and 2/Powellton |
27 |
0.80 |
280 |
47 |
104 |
|
|
ALL |
Pond Creek |
9.9 |
0.075 |
74 |
14 |
88 |
|
|
ALL |
Pocahontas No. 3 |
7.1 |
0.30 |
35 |
8.1 |
33 |
|
|
KY |
No. 5 Block |
12 |
0.75 |
70 |
16 |
43 |
|
|
KY |
Stockton and Coalburg |
13 |
0.60 |
79 |
15 |
151 |
|
|
KY |
Winifrede/Hazard |
10 |
0.40 |
58 |
13 |
61 |
|
|
KY |
Fire Clay |
12 |
0.70 |
53 |
14 |
33 |
|
|
KY |
Williamson/Amburgy |
29 |
0.61 |
120 |
31 |
33 |
|
|
KY |
Campbell Creek/Upper Elkhorn No. 3 |
21 |
1.1 |
83 |
22 |
55 |
|
|
KY |
Upper Elkhorn Nos. 1 and 2/Powellton |
33 |
0.90 |
280 |
53 |
76 |
|
|
KY |
Pond Creek |
15 |
0.64 |
74 |
19 |
36 |
|
|
MD |
Pittsburgh |
nd |
2.7 |
2.7 |
nd |
1 |
|
|
MD |
Upper Freeport |
32 |
4.3 |
90 |
24 |
13 |
|
|
MD |
Lower Kittanning |
16 |
15 |
16 |
0.66 |
2 |
|
|
OH |
Pittsburgh |
13 |
0.45 |
51 |
11 |
56 |
|
|
OH |
Upper Freeport |
44 |
3.9 |
120 |
29 |
46 |
|
|
OH |
Lower Kittanning |
22 |
2.9 |
130 |
21 |
93 |
|
|
PA |
Pittsburgh |
9.4 |
0.33 |
61 |
13 |
36 |
|
|
PA |
Upper Freeport |
33 |
0.73 |
130 |
23 |
180 |
|
|
PA |
Lower Kittanning |
16 |
0.14 |
90 |
19 |
88 |
|
|
VA |
Stockton and Coalburg |
nd |
2.6 |
2.6 |
nd |
1 |
|
|
VA |
Winifrede/Hazard |
2.8 |
2.4 |
3.0 |
0.35 |
3 |
|
|
VA |
Fire Clay |
nd |
10 |
10 |
nd |
1 |
|
|
VA |
Williamson/Amburgy |
11 |
0.90 |
31 |
17 |
3 |
|
|
VA |
Campbell Creek/Upper Elkhorn No. 3 |
15 |
1.7 |
85 |
23 |
13 |
|
|
VA |
Upper Elkhorn Nos. 1 and 2/Powellton |
11 |
1.7 |
23 |
9.5 |
6 |
|
|
VA |
Pond Creek |
5.5 |
0.89 |
21 |
6.1 |
10 |
|
|
VA |
Pocahontas No. 3 |
8.9 |
2.7 |
29 |
7.7 |
11 |
|
|
WV |
Pittsburgh |
13 |
0.33 |
58 |
14 |
47 |
|
|
WV |
Upper Freeport |
16 |
0.72 |
41 |
14 |
11 |
|
|
WV |
Lower Kittanning |
5.6 |
0.13 |
19 |
7.9 |
10 |
|
|
WV |
No. 5 Block |
9.0 |
0.80 |
49 |
11 |
45 |
|
|
WV |
Stockton and Coalburg |
4.3 |
0.40 |
38 |
6.4 |
41 |
|
|
WV |
Winifrede/Hazard |
3.7 |
0.50 |
10 |
2.8 |
17 |
|
|
WV |
Fire Clay |
3.7 |
1.7 |
7.6 |
2.5 |
5 |
|
|
WV |
Williamson/Amburgy |
nd |
20 |
20 |
nd |
1 |
|
|
WV |
Campbell Creek/Upper Elkhorn No. 3 |
8.4 |
0.85 |
75 |
12 |
68 |
|
|
WV |
Upper Elkhorn Nos. 1 and 2/Powellton |
12 |
0.80 |
70 |
18 |
22 |
|
|
WV |
Pond Creek |
6.9 |
0.075 |
31 |
7.5 |
42 |
|
|
WV |
Pocahontas No. 3 |
6.2 |
0.30 |
35 |
8.3 |
22 |
|