Lead and mold are some of the old toxins that have caused public health concerns over the years. They can cause chronic intoxication with varied complications in the human body system, associated with gastrointestinal complaints, peripheral neuropathy damage, kidney failure problems, and effect on CNS (Safty & Metwally 121). Ethylenediamine tetra-acetic acid (EDTA) chelation therapy is a recognized treatment for lead poisoning but it’s highly recommended to adopt some good practices in lead production to avoid poisoning (ILA 4). Mould’s best treatment is based on identifying whether it’s active or dormant. Ozonation is the most recommended treatment method for water because of two main reasons: its ability to kill more micro infectious organisms, and the fact that it does not add any chemical substance to water (DCL 44). Lead is one of the oldest toxins that when one is exposed to, can cause chronic intoxication with multiple complications in the body system. It causes some gastrointestinal-related complaints such as constipation, abdominal discomfort, and colic; and lack of concentration, sudden mood change, and irritability due to its effect on CNS (Safty & Metwally 121). Safety & Metwally also says that it causes peripheral neuropathy associated with tremors, aching muscles, foot, and wrist drops; and other damages on sensitive organs like kidney and heart, thus leading to kidney failure, anemia, and high blood pressure (122). On the other hand, mold that results from dump places has been associated with a high level of allergic diseases and asthma in children who stay indoors most of the time (ILA 2). A widely recognized treatment for people who have been poisoned by lead is providing them with ethylene diamine tetra-acetic acid (EDTA) chelation therapy (ILA 4). It is the most effective chelator for removing lead and other heavy metals due to its oxidizing properties that reduce the metals into their insoluble oxides (ILA 5). Mould’s elimination procedure is to first identify whether it is active or dormant (DCL 8). An active mold is normally soft and wet while a dormant one is an easy to wipe powder-like substance (DCL 9). The recommended method of eliminating an active mold is pulling off of the book-like substance (DCL 11). On the other hand, the dormant one can either; be dried further and blown off, or frozen and then brushed off. Fumigants are not recommended for use since they are toxic, but a mycologist should be consulted to determine the toxicity level of mold if detected in large amounts. Ozone, a colorless and unstable gas that is comprised of three oxygen atoms is highly reactive. It can oxidize the elements of manganese; iron and sulfur in water that consequently form insoluble particles, removable by simple coagulation, chemical oxidation, and post-filtration (NAS 34). The ozonation process involves the passage of dry and clean air through a high voltage electric discharge, like corona, which consequently creates an ozone concentration of average 1% or 10,000mg/L (NAS 37). In the treatment of large-scale water systems like swimming pools, the corona discharge is normally preferred, while small UV ozonation is mostly applied in small quantities of w