'My oncologist cautioned me that due to a shortage of state monitoring, even legal cannabis products can be highly contaminated with pesticides, fungus, bacteria and heavy metals, among…

'My oncologist cautioned me that due to a shortage of state monitoring, even legal cannabis products can be highly contaminated with pesticides, fungus, bacteria and heavy metals, among other things,' writes an L.A. Times reader.

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This is a source-linked briefing. Read the original report from Los Angeles Times .