Eight Denver marijuana grow facilities placed on hold over pesticides concerns

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DENVER -- Pesticides kill insects and other pests, but they can hurt animals and humans as well. That’s one reason why the city of Denver has put a hold on marijuana plans from eight grow facilities that serve dozens of dispensaries.

The city says pesticides are especially dangerous in pot because more chemicals are absorbed through smoking than eating.

It could be months before the test results are back, but to put it in perspective, only eight grow facilities out of the 371 in Denver are under investigation.