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.
Since then, states have quickly drawn up regulations, companies have seen their products and methods put under the microscope — sometimes taking big hits to their businesses — and cannabis product and pesticide buyers have filed lawsuits against their manufacturers.