Four Most Common Heavy Metals
The” Big Four Heavy Metals” as some people say, consist of lead, cadmium, arsenic and mercury and are a focus of Chemical Solution’s heavy metals analysis. These four elements are probably the most common toxic metals that are prevalent in science, commerce and the media. I say the media, because these metals tend to be toxic in some form and draw big headlines. For an example, lead in lipsticks, children’s toys and drinking water. Arsenic in fruit juices and methyl mercury in fish have both been recently in the blogs, magazines and newspapers. Heavy metals testing in food and heavy metals lead testing, lead testing in cosmetics, for example, is critical. The big 4 Heavy Metals are on the minds of everyone.
Cadmium: In industry, cadmium is used to lower the melting point of certain alloys and is used in the formation of bearing alloys to reduce the amount of friction and fatigue. Cadmium is considered a toxic metal to humans and therefore, is regulated in the environment and products that humans may have exposure. California Proposition 65 limits the amount of cadmium to 4.1 ug/day intake.
Arsenic: This metal is often found in the environment where can be naturally occurring. Arsenic was an additive to certain animal feeds to boost egg production, etc. Recently, arsenic has been detected in food substances such as apple juice and brown rice products. It is considered toxic as inorganic arsenic and is subject to regulatory scrutiny. The regulatory limit for arsenic in drinking water was lowered from 50 ppb to 5 ppb within the last 20 to 25 years.
Lead: The infamous lead. The history of lead dates back at least 7000 years and is mentioned in the book of Exodus. As with the other metals, lead mainly occurs in the environment via pollution of some fashion. It is dispersed throughout our soil, plants, air, water, paint, fuels, etc. Lead is also considered toxic to humans and warrants regulatory scrutiny. Lead has accumulated in plant products and children’s toys and other merchandise. It is capable of being a culprit in the damaging of the human central nervous system.
Mercury: Another metal that is considered to be toxic as methyl mercury. It is also known as “quick silver”. It is the only metal that is in a liquid state at room temp. Mercury is found in teeth fillings, fish, and thermometers.
Chemical Solutions Ltd. analyzes a multitude of items, materials and products for the presence of toxic and beneficial metals. Heavy metals analysis for elemental trace elements is a big part of what we do. Contact us for more information.