Despite strict efforts by Oregon regulators to keep pesticide-tainted marijuana from reaching store shelves, some contaminated cannabis is still slipping past the state’s testing labs.
The Oregonian, the state’s largest newspaper, recently conducted a study to determine the success of Oregon’s testing program in halting the sale of tainted marijuana.
The newspaper purchased a small sample of cannabis extracts from Portland marijuana stores and took the samples to two labs for two rounds of testing. In the first round, three of the 10 products contained higher levels of pesticide than the state allows. But when the samples