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VTCNA Health Tips: Hemp And Bioremediation

Photo courtesy of Kym MacKinnon on UnSplash
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Jessilyn Dolan 26 Aug 2019

As we start to look towards fall harvest, and ten thousand acres of Vermont hemp now flowering, I wanted to educate readers on the idea of bioremediation – or phytoremediation – when it comes to hemp farming and CBD products.

The Ministry of Hemp’s article How Hemp Can Heal Our Soil & Why It Matters To Consumers defines bioremediation as “using living things to heal the soil, allowing us to clean and reclaim polluted lands.” While bioremediation uses bacteria and other microorganisms,  phytoremediation relies on crops like hemp to achieve the same results.

Graphic courtesy of kazmira-llc.com

Elaine Charkowski of Central Oregon Green Pages articulates the value of  phytoremediation, saying that it “can also be used to clean up metals, pesticides, solvents, explosives, crude oil, polyaromatic hydrocarbons, and toxins leaching from landfills,” and that hemp is particularly adept at this process.

The National Hemp Association says hemp plants are “exceptional against heavy metals in soils, as shown by a study conducted in China. Eighteen cultivars of hemp were tested for tolerance and accumulation” of heavy metals and “identified for its phytoremedial use.” Results showed that fifteen of the 18 cultivars were considered to be good biodiesel crop candidates for phytoremediation in contaminated soils.

Chernobyl Exclusion Zone. Photo courtesy of sensiseeds.com

Thanks to the plant’s high biomass and deep roots, hemp was also successfully used in the Ukraine to help rehabilitate soil contaminated with heavy metals such as lead, nickel, cadmium, zinc, and chromium around the site of the Chernobyl disaster.

Vincenzo Fornaro is using industrial hemp to help decontaminate the soil on his farm caused by a nearby factory. Courtesy of CBS News.

In 2008, CBS News highlighted how a farmer in Italy fought soil contamination with cannabis by planting industrial hemp to leach contaminants from the soil.

A Rolling Stone article from June, 2018 profiles activist Doug Fine whose attitude towards hemp is that the plant “is nothing less than a savior of humanity, a miracle plant that will revivify depleted soils, mitigate the threat of climate change, and re-establish harmonic balance between humans and the environment.”

They go on to explain that hemp is a superstar phytoremediator because it grows anywhere, like a weed. Additionally, it “produces a relative abundance of bushy biomass in a short period of time, making it highly effective at extracting nutrients from the soil.” Hemp also has deep roots for an annual, allowing it to penetrate contaminated soil. Hemp is also “naturally resistant to insect predators, thus obviating the need for pesticides.”

The best way to ensure your own health and reliable consumer safety when looking for CBD products is to ask for full panel testing from an independent third party certified lab before purchasing anything.

The Rolling Stone piece brings us back to the most important issue – consumer safety – and reminds us that we don’t yet have enough data to understand exactly how hemp stores the metals and contaminants it extracts from the soil, and questions what that might mean for possible health implications with our CBD products.

The best way to ensure your own health and reliable consumer safety when looking for CBD products is to ask for full panel testing from an independent third party certified lab before purchasing anything. Be sure to ask for full panel testing, including heavy metals and mycotoxins.

For more information on clean herbal cannabis supplements and bioremediation and to ensure you’re informed enough to ask the right questions, don’t hesitate to reach out to me at greennursevt@gmail.com.

Jessilyn Dolan is a nurse researcher, educator and consultant for medicinal cannabis and hemp, and specializes in maternal child health, substance  use and mental health disorders. Jessilyn is an experienced herbalist, bodyworker and cannabis cultivating caregiver. She is a proud Clean Green Certified, H.E.M.P.  farmer, crafting full spectrum Vermont hemp and CBD products, NurseGrown Organics. Jessilyn is a member of the American Cannabis Nurses Association and founder of the Vermont Cannabis Nurses Association.

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