Groundwater can contain inorganic arsenic in the form of arsenite or arsenate, in which arsenic is bound to oxygen atoms. These compounds are highly toxic.Īrsenic trioxide, meriting the name of “inheritance powder”, is the one that historically has been used as a lethal poison. “Inorganic” arsenic compounds, on the other hand, do not contain carbon and are generally simple molecules, such as arsenic trioxide.
This "organic" variety is more complicated in structure, but it is harmless. In an “organic” arsenic compound, the arsenic atom is attached to a carbon that may, for example, be part of a sugar molecule such as ribose. These can be divided into two categories, “inorganic” and “organic.” In this case, the term “organic” is used in its proper chemical sense, referring to molecules that have a framework of carbon atoms.
In cannabis we are talking about Heavy metals such as lead, cadmium, mercury, and arsenic because they are toxic to both plants and humans, and therefore often the focus of testing. Heavy metals are chemical elements with a specific gravity at least five times that of water. Instead of telling you our opinion we figured we would share all of the data with you that we have so you can make your own informed decisions. We do not believe the home grower should be as concerned with these restrictive new testing limits and we are lobbying politically for change in the testing parameters that is more realistic for organic growers. When we do research and have data, the decisions become clear.
We must stick together as a community and handle these problems out in the open for the betterment of all those that are going to grow in living soil and don’t want to be forced into hydro for fear of heavy metals. Heavy Metal Testing and Best Practices for Organic Living Soil Growers
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