Heavy metal environmental contaminations
For the past several decades the concern of heavy metal toxins in our foods has been on the rise. Mother's, no longer feeding their children rice cereal because of fear of arsenic in high levels. Cadmium and lead in dangerous amounts found in many food products. Many are taught to believe that these harmful contaminants are naturally in the soil but that is not the truth. Unfortunately, the heavy use of mined chemical fertilizers, pesticides and industrial agricultural practices have caused mass contamination to the soils, waterways, and ecosystems in which we grow our food and live. Lead arsenate and calcium arsenate that have been heavily used on orchards (apples, peaches) and other crops until the mid-20th century, have created severe contamination. The majority of phosphorus-based fertilizers, specifically Triple Super Phosphate (TSP) contains elevated levels of inorganic arsenic, with studies indicating a mass contribution in arsenic accumulation in commercial agricultural soils. In regions like Bangladesh, Vietnam, and parts of China the groundwater containing high natural levels of arsenic is used for irrigation has significantly increased contamination in topsoil. The contamination levels rise to extreme levels in the flooded fields of rice. Exposure to inorganic arsenic has been linked to a greatly increased risk of cancer, build up in the organs especially the brain is linked to autism, as well as endocrine disruption disorders. Now that we know the severity of the issue, what can we do about it? Our purchasing decisions have great power. By choosing to buy from organic permaculture oriented farmers who do practices to heal and regenerate soil, test their soils for contaminants, and use practices such as biochar refertilization we support the system that will heal. Of course that option is not always available, the next best thing is to buy the fruits and vegetables low in arsenic contamination and avoid ones that are known for high contamination levels.