Environment
The Drinking Water Test Methods in Japan were revised in July 2001 and the method for analyzing ethylenediamine tetraacetic acid (EDTA) was added. EDTA is widely used as an additive for agricultural and food products. It is also used in various industrial fields, including manufacturing various industrial products, plating, drug preparation and (water) softening processes. EDTA waste discharged into the environment does not easily decomposed and exists in the form of a metal chelate. Therefore, trace amounts of EDTA can be contained in environmental water.
March 29, 2004 GMT