Regulators had to work with limited existing information on the possible risks of pesticides and contaminants in marijuana.

Colorado regulators fined more than 40 cannabis cultivators and manufacturers over the last five years for failing to comply ...

Marijuana’s humid growing conditions are a paradise for dangerous mold. States where marijuana is legal make growers hire laboratories to check for concentrations of mold and other contaminants ...

Cannabis producer and retailer Curaleaf issued a voluntary recall for one of its medical marijuana products on Friday, the Connecticut Department of Consumer Protection confirmed. The product, ...

Maine is the only state in the country that doesn't mandate testing for mold, yeast, chemicals or heavy metal in its medical ...