Keby ste vedeli kolko pestovatelov pouziva skodlive pesticidy, hlava by sa vam zatocila.
Regulacia a kontrola kvality medicinal cannabisu je nutna.

When you smoke pot, you might also be smoking a glut of nasty chemicals. A new study published in the Journal of Toxicology found that up to 70 percent of the pesticides on a given marijuana bud can transfer to the inhaled smoke.

According to Raber, about 10 percent of the marijuana tested in his lab registers positive for pesticides on average. All of those samples come from medical marijuana dispensaries as well as patients who have sought out testing.The Times-Standard reported that in one random study in Raber’s lab, more than 35 percent of marijuana failed pesticide tests.
http://www.alternet.org/drugs/are-you-smoking-pesticides-your-pot