(NPR) – The testing data, which he shared with NPR, shows four products would have failed state limits for yeasts and mold, one by more than six times the state limit.

And Singer looked for things Colorado doesn’t require testing for, like coliform bacteria, which signals unsanitary conditions in the grow house or in storage. Four of the 15 products had high levels of coliform. Chemical components of pesticides were found in four of the products — inhaling certain pesticides through marijuana smoking poses a risk of harmful toxicants entering the lungs and bloodstream. Singer says it reminds him of the bad old days, before weed was legal. (Read More)