Trace levels of contaminants safe in medical cannabis, AZ officials say

Just Released! Get realistic market forecasts, state-by-state insights and benchmarks with the new 2024 MJBiz Factbook member program, now with quarterly updates. Make informed decisions.


Extremely small amounts of some heavy metals, pesticides, microbial growths and residual solvents are safe in medical cannabis, according to the Arizona Department of Health Services.

Other experts, however, argue there isn’t enough scientific evidence to say with certainty what levels of contaminants are not harmful, the Phoenix New Times reported.