The Colorado Department of Public Health and Environment is misleading consumers about the nonexistent health risks from trace amounts of mercury in walleye and other fish (Ed Dentry column, Mercury raises worries about fish in Colorado, July 4).

Issuing a health advisory when mercury levels hit 0.5 parts per million makes no sense. The federal Food and Drug Administration’s lowest advisory level is 1.0 parts per million (twice as high). And the FDA writes that this level will limit consumers’ mercury exposure “to levels 10 times lower than the lowest levels associated with adverse effects.”

Do the math. Colorado’s mercury “warning” level is set 20 times lower than what might actually present a health risk. If more consumers had this important information, public hysteria about mercury in fish would evaporate.