Hartes Wasser ist mehr mit Chemikalien belastet wie weiches Wasser.
J Prev Med Hyg. 2007 Mar;48(1):10-6.
Evaluation of toxic chemical parameters and ecotoxicity levels in bottled mineral waters
Signorile G, Neve A, Lugoli F, Piccinni MC, Arena R, Di Marino R.
University of Bari, Department of Internal and Public Medicine, Section of Hygiene, Italy.
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=pubmed&cmd=Retrieve&dopt=AbstractPlus&list_uids=17506232&itool=pubmed_DocSum