Viral505
Member
fyi 'heavy metals' are essential plant nutrients, there's a reason they're added. All healthy soul has 'heavy metals' in it.
For sure man, I'm just concerned with the 5 main heavy metals that are attributed to major health issues. Arsenic, Cadmium, Mercury, Lead, and Nickel.
Cannabis is a dynamic accumulator and holds on to everything it can in the soil, or water. So you're smoking those metals it has taken in, you can't flush that out, metals aren't salts. So when you are making concentrates and smoking concentrates, you are therefore further concentrating the heavy metals the plant has up taken (and cannabis takes up everything in the soil, it is a dynamic accumulator). I'm not saying its possible to avoid heavy metal uptake, just saying to keep this in mind with the nutrient selection at hand when you're pushing your plants for max yield.
Here's what the CDC and EPA has to say about these 5 metals:
Cadmium - https://www.atsdr.cdc.gov/phs/phs.asp?id=46&tid=15
Arsenic - https://www.atsdr.cdc.gov/phs/phs.asp?id=18&tid=3
Mercury - https://www.epa.gov/mercury/health-effects-exposures-mercury
Lead - https://www.cdc.gov/niosh/topics/lead/health.html
Nickel - https://www.atsdr.cdc.gov/phs/phs.asp?id=243&tid=44