Global chemical contamination is a worldwide concern affecting every being on earth. Chemical exposure, whether it is through air, water, plants, soil or our modern living environment is unavoidable. But certain chemicals and compounds having Persistent, Bioaccumulative, Toxic (PBT) characteristics are more dangerous to our environment than others because of their inability to break down easily, are easily transferred throughout all forms of environmental media, and posing risks to human health and the ecosystem due to their toxicity at low concentrations.