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K-Factor-Corrected Elemental Compositions (Normalized to Si) for Respirable Libby Amphibole Fibers Divided Into Two Width Categories
| Width (μm) | O | Na | Mg | K | Ca | Fe |
|---|---|---|---|---|---|---|
| <0.16 | 2.05 | 0.11 | 0.44 | 0.021 | 0.19 | 0.23 |
| >0.16 | 1.81 | 0.11 | 0.47 | 0.028 | 0.20 | 0.20 |
| Ratio | 1.13 | 0.98 | 0.94 | 0.73 | 0.92 | 1.15 |
