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Table 3

Correlation between water-soluble fluorine and other ions in geologic profile of quaternary system

ComponentCorrelation coefficient r (n = 33, df = 31)Equation
Na+ −0.056 y = 15.691 − 2.314x 
Mg2+ −0.268 y = 59.574 − 2.518x 
Ca2+ −0.378 y = 35.325 − 2.149x 
Cl −0.352 y = 14.953 − 0.407x 
SO42− −0.195 y = 13.198 − 0.039x 
HCO3 0.485 y = 2.137 + 0.028x 
ComponentCorrelation coefficient r (n = 33, df = 31)Equation
Na+ −0.056 y = 15.691 − 2.314x 
Mg2+ −0.268 y = 59.574 − 2.518x 
Ca2+ −0.378 y = 35.325 − 2.149x 
Cl −0.352 y = 14.953 − 0.407x 
SO42− −0.195 y = 13.198 − 0.039x 
HCO3 0.485 y = 2.137 + 0.028x 
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