Chromium…
California continues to set the tone for the nation when it comes to regulating water quality – last week, it became the first state in the U.S. to introduce a standard for hexavalent chromium, or chromium-6. The California Department of Public Health (CPDH) currently only sets a limit on total chromium, which includes chromium-3, a required nutrient, and chromium-6, its potentially carcinogenic counterpart. CPDH’s maximum contaminant level (MCL) for total chromium is 50 ppb – already much lower than the [...]
