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. Author manuscript; available in PMC: 2011 Jan 24.
Published in final edited form as: Inhal Toxicol. 2008 Jun;20(8):733–740. doi: 10.1080/08958370801932544

TABLE 3.

Correlation Matrix of Significant Elements (K-Factor-Corrected and Normalized to Si)

O Na Mg K Ca Fe
O 1
Na 0.160 1
Mg 0.019 −0.058 1
K −0.206 0.365* −0.126 1
Ca −0.062 −0.465* 0.581* −0.292* 1
Fe 0.254 0.573* −0.405* 0.040 −0.630* 1

Note. Absolute values larger than 0.26 are significant at p < .01 and are indicated by asterisks.