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Table 5. 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 whole-coal basis, by county and coal bed/zone for the State of Ohio.

[nd, no data; no., number.]

County

Coal Bed/Zone

Mean

Minimum

Maximum

Standard Deviation

No. of Samples
             
             

Belmont

Pittsburgh

9.7

0.58

51

12

20

Belmont

Upper Freeport

49

36

78

19

4

Belmont

Lower Kittanning

17

5.6

46

14

9
             

Carroll

Lower Kittanning

nd

8.2

8.2

nd

1
             

Columbiana

Upper Freeport

68

26

120

32

10

Columbiana

Lower Kittanning

64

57

72

11

2
             

Coshocton

Lower Kittanning

15

3.5

50

12

14
             

Gallia

Pittsburgh

19

9.9

31

9.5

4

Gallia

Lower Kittanning

75

19

130

80

2
             

Guernsey

Pittsburgh

11

7.3

14

3.6

3

Guernsey

Upper Freeport

36

3.9

110

31

8

Guernsey

Lower Kittanning

18

4.2

33

12

6
             

Harrison

Pittsburgh

14

0.45

37

12

10

Harrison

Upper Freeport

34

33

35

1.4

2
             

Hocking

Upper Freeport

25

9.2

41

23

2

Hocking

Lower Kittanning

38

32

46

7.4

3
             

Holmes

Lower Kittanning

15

9.6

24

6.4

4
             

Jackson

Lower Kittanning

32

5.1

62

20

5
             

Jefferson

Pittsburgh

18

0.47

44

15

8

Jefferson

Upper Freeport

nd

56

56

nd

1
             

Lawrence

Lower Kittanning

23

7.8

33

11

4
             

Mahoning

Lower Kittanning

34

2.9

76

38

3
             

Monroe

Pittsburgh

10

4.0

25

7.9

8

Monroe

Upper Freeport

43

10

81

29

4

Monroe

Lower Kittanning

19

6.6

29

11

3
             

Muskingum

Pittsburgh

19

12

31

11

3

Muskingum

Upper Freeport

17

9.0

28

10

3

Muskingum

Lower Kittanning

nd

8.2

8.2

nd

1
             

Noble

Upper Freeport

54

11

90

29

6

Noble

Lower Kittanning

9.9

3.5

28

9.5

7
             

Perry

Upper Freeport

20

8.8

30

11

3

Perry

Lower Kittanning

23

12

34

8.9

4
             

Scioto

Lower Kittanning

23

11

35

17

2
             

Stark

Upper Freeport

nd

32

32

nd

1

Stark

Lower Kittanning

36

7.3

92

39

4
             

Tuscarawas

Upper Freeport

23

13

33

14

2

Tuscarawas

Lower Kittanning

15

6.4

35

8.1

11
             

Vinton

Lower Kittanning

23

3.9

47

16

7
             

Washington

Lower Kittanning

nd

56

56

nd

1
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