Model #

Independent variable(s)

Predictive Model

R2 value

57.

As

T l ^ = 0.85 As – 43.14

90.8%

58.

Cd

T l ^ = 0.99 Cd + 21.91

92.4%

59.

Co

T l ^ = 0.96 Co – 5.76

93.5%

60.

Cr

T l ^ = 0.89 Cr + 13.18

94.0%

61.

Fe

T l ^ = 0.03 Fe + 3.11

30.0%

62.

Pb

T l ^ = 0.47 Pb – 25.97

37.9%

63.

Sb

T l ^ = 0.56 Sb – 85.51

55.6%

64.

Cd, Co, Cr, & Fe

T l ^ = 0.91 Cd + 0.01 Fe + 5.07

94.7%