Whitepaper on DNAzyme heavy metals testing technology. Water pollution is a worldwide problem affecting developing and developed countries alike. Heavy metal contaminants are one prevalent type of water pollutant. They are persistent in the environment once discharged and removal from source waters is necessary to ensure a clean drinking water supply. The problem of heavy metal pollution arises from several sources. Heavy metals such as uranium can naturally exist in ground water. Lead can be present as a result of lead solder in copper piping. Mercury and cadmium can be a result of power plant emissions. Additionally, a variety of industrial processes can produce problematic heavy metal concentrations in discharged water from factories that are harmful to humans and can contaminate agricultural land. Testing for heavy metals at part per billion (ppb) levels is essential to meet international established limits. To meet this need ANDalyze, Inc. has developed heavy metals tests based on catalytic DNA. ANDalyze heavy metals tests are designed to be sensitive, selective, portable, and very easy to use. This paper covers the use, the innovative solution, specifications, applications, and future possibilities of this patented technology.