IRON: A GREAT FRIEND TO ALL

As a representative of the Periodic Table of Chemical Elements, arsenic is the villain of carbon, our central element of life and survival. But as the saying goes, one day the hunter, another day the hunted. The element that can most interfere with and break the cycle of arsenic and its contamination is iron, especially in its oxide forms, which are present in soil correction systems and filtration systems. Iron compounds have a strong affinity for arsenic and are used decisively to immobilize or remove arsenic from the environment.

Iron filters are our best ally in this battle. In water treatment systems, activated iron filters are used to capture arsenic and reduce its concentration, though not necessarily eliminating it completely. Likewise, in natural environments, iron-rich soils can reduce the mobility of arsenic, limiting its absorption by plants and entry into the food chain. In short, the main element to be considered in combating arsenic is iron, though other elements can also play supporting roles, such as aluminum, calcium, activated carbon, and certain microorganisms.

While iron in the form of oxides reduces mobility and toxicity, aluminum, also in oxide form, absorbs arsenic and is likewise used in filters. Calcium, when in contact with arsenic, forms precipitates that reduce the solubility of this carcinogenic agent. Activated carbon absorbs arsenic contained in organic compounds in purification systems. Finally, some microorganisms methylate arsenic, making it less toxic and immobilizing it.

Thus, it can be said that ecological and biological interferences are positive: some iron-reducing bacteria can alter the oxidation state of arsenic, making it less toxic. In wetlands and waterlogged soils, where iron and microorganisms are present, arsenic contamination is naturally reduced. Furthermore, bioremediation projects use iron and bacteria to clean contaminated areas.

Therefore, it is possible to state that iron is the main natural antagonist of arsenic, acting practically as a chemical blocker, reducing the toxicity and mobility of this element. This technology is already used and explored in environmental systems and remediation strategies to protect ecosystems and human health. We can also say that the iron contained in our blood is a crucial element for measuring arsenic levels, and that, with the aid of arsenic detectors in routine exams, iron oxides must be included to provide a more accurate measurement of the nanogram levels present in each organic system.

Given the presence of this contaminant, it is crucial that our diet includes iron-rich foods, such as beans. Other foods to be considered are: red meats, beef or chicken liver, oysters and mussels, lentils, spinach and kale, pumpkin seeds, raisins and dried apricots, pistachios and Brazil nuts, tofu and soy derivatives, as well as quinoa and oats. Among these foods are both heme iron and non-heme iron sources.

Another point to note is the importance of a diet rich in vitamin C, with the addition of oranges, acerola cherries, and bell peppers. It is also possible that consuming coffee or tea together with iron-rich meals may reduce arsenic absorption. And always remember, in more severe cases of deficiency, supplementation may be necessary under medical guidance.