Hexavalent Chromium

Meaning, Term, and Glossary Definition - What is Hexavalent Chromium?

Hexavalent chromium (Chromium-6) compounds are a group of chemical substances that contain the metallic element chromium in its positive-6 valence (hexavalent) state. Occupational exposures to Chromium-6 occur during the production of stainless steel, chromate chemicals, and chromate pigments. Chromium-6 exposures also occur during other work activities such as stainless steel welding, thermal cutting, chrome plating.

Hexavalent chromium is recognized as a human carcinogen via inhalation. Workers in many different occupations have been and continue to be exposed to hexavalent chromium. Problematic exposure is known to occur among workers who handle chromate-containing products as well as those who arc weld stainless steel. Within the European Union, the use of hexavalent chromium in electronic equipment is largely prohibited by the Restriction of Hazardous Substances Directive. Hexavalent chromium was found in drinking water in the town of Hinkley, California, USA, resulting in a legal case and multi-million dollar settlement. Samples taken in Aug 2010 showed that the plume of contaminated water had started to migrate into a lower aquifier. The 0.58 ppm Chromium 6 in the groundwater in Hinkley exceeded the Maximum Contaminant Level (MCL) of 0.10 ppm for total Chromium currently set by the United States Environmental Protection Agency (EPA). The legal case was documented in the popular film called, Erin Brockovich.

View more information on Hexavalent Chromium.

Hexavalent Chromium

Hexavalent Chromium: Hexavalent Chromium in Drinking Water

Try searching Hexavalent Chromium across the entire website.


Analytical testing dots


A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |


<-- Search again

Analytical testing dots

View Laboratory Acronyms...

View EPA Data Qualifier (Flag) Abbreviations...

Analytical testing dots

Suggestions? This Laboratory Terms page continues to expand and improve. If you have suggestions for improvement, we would enjoy hearing from you. Please contact the webmaster here.


Analytical testing dots