What Is Iron? Iron is the most abundant heavy metal and the fourth most abundant element in the earth’s crust. It makes up 5% of the earth’s crust. However, there are also other varied places where iron occurs naturally. It is generally present in the atmosphere due to emissions from thermal power plants, the steel and iron industry, and incineration. Iron is found in nearly all water supplies. It is commonly found in groundwater and directly results from its natural existence in underground rock formations or aquifers. It is the most common dissolved heavy metal found in groundwater and wells. Found in the surface water of lakes and ponds, iron is soluble and comes from rainwater, melting snow, and atmospheric emissions. The two most typical types of iron found in water are ferrous and ferric. Fortunately, they can generally be removed with conventional water treatment methods.
RkJQdWJsaXNoZXIy NTc4ODc=