The marijuana industry has a dirty little secret

The marijuana industry has a dirty little secret | New York Post:
Moving the black market in marijuana into the light has been a boon for state tax coffers, entrepreneurs and cannabis users, but an inconvenient fact went unaddressed in the process: Potentially dangerous chemicals are used to grow it.
That changed last fall, when a Colorado newspaper’s investigation found shelves stocked with products grown using pesticides that hadn’t been approved for cannabis farming, spurring a rush of legal, regulatory and business activity.
...There is even concern that the federal government could intervene out of concern for public health, stalling the spread of cannabis legalization and the growth it has fostered.
...Growers have turned to pesticides — such as myclobutanil, which breaks down into an asphyxiant that can cause various forms of sickness when burned, and the insecticide imidacloprid..."