Understanding Cannabis Testing

Heavy Metals

The Emerald Test (Heavy Metals in Hemp Bud)

Heavy Metal Screening


As with other plants, cannabis is vulnerable to contamination by air, water, and soil pollutants. Cannabis is particularly susceptible as it easily absorbs and stores these contaminants. Heavy metals (e.g., arsenic, cadmium, mercury, and lead) have been detected in plants and can cause serious harm to the human body. Simply growing cannabis indoors does not eliminate this hazard as these dangerous materials can be contained in pesticides, fertilizers, and soil.

 Arsenic ≤ 10 ppm
 Cadmium ≤ 4 ppm
 Mercury ≤ 2 ppm
 Lead ≤ 6 ppm
ppm = parts per million