Biostimulants legislation

"It is possible that humans that eat vegetables grown in soil that with added sewage sludge may consume more cadmium and copper than the estimated tolerable intake levels"
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However, this is not assessed in the risk assessment published in 2009 by the Norwegian Scientific Committee for Food Safety (VKM). Furthermore, the Committee concludes that "food grown in soil with added sewage sludge does not constitute any significant health risk."
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Read the full report.