another risk factor for cannabis users is contamination by pesticides. many of the illegal grow sites in California national forests have been contaminated by C

another risk factor for cannabis users is contamination by pesticides. many of the illegal grow sites in California national forests have been contaminated by Carbofuran, a banned pesticide. this chemical is applied to the plants. these operations still supply a large fraction of consumer marijuana demand. if you're gonna toke, know your weed supply chain.