1. http://www.denix.osd.mil/cmrmd/ECMR/HexChrome/TheBasics.cfm.
2. Chromium Speciation in Rainwater: Temporal Variability and Atmospheric Deposition
3. Six Emergent Chemicals – Toxicology and Regulatory Issues;Babyak,2003
4. “EPA Addresses Chromium (VI) in Drinking Water” C&EN 2011, 89(1), 16.
5. EPA Method 218.7: De67termination of Hexavalent Chromium in Drinking Water by Ion Chromatography with Post-Column Derivatization and UV–Visible Spectroscopic Detection, EPA Document No. EPA 815-R-11-005, November 2011.