The Water Sample Mercury Ion (Hg²⁺) Concentration Assay Kit is primarily used to detect and quantify mercury ions in water samples. It is widely applied in environmental monitoring to assess water quality, ensuring compliance with safety standards and regulations. Industries such as mining, manufacturing, and wastewater treatment utilize this kit to monitor mercury contamination in effluents and natural water bodies. Additionally, it is essential in research laboratories for studying mercury pollution and its impact on ecosystems. The kit is also valuable in public health initiatives, helping to identify mercury levels in drinking water to protect human health. Its ease of use and accuracy make it a reliable tool for rapid on-site testing and laboratory analysis.