title: [3. Report on changes in the KTW-guidelines of the Environmental Protection Agency].
mesh_terms: D003247:Conservation of Natural Resources / Q000331:legislation & jurisprudence*; D005858:Germany; D006077:Government Agencies; D033161:Government Regulation; D017408:Guidelines as Topic; D014873:Water Pollutants; D014881:Water Supply / Q000331:legislation & jurisprudence* / Q000592:standards*
chemical_list: D014873:Water Pollutants