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What is the lowest applicable regulatory cap for lead in turmeric, and does the Index show field findings above it? Which baby-food categories does FDA Closer to Zero set lead action levels for, and at what ppb? What does the literature say about cadmium in cocoa, and which regions report the highest concentrations? How does the EU mercury limit for tuna compare to the US FDA action level? Is brown rice or white rice higher in inorganic arsenic, and why? What testing method should a QA lab use to distinguish total chromium from hexavalent chromium in spices?

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