An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Pajdak-Stós A, Fiałkowska E, Fyda J, Babko R.Pajdak-Stós A, et al. Among authors: babko r.Water Sci Technol. 2010;61(3):573-80. doi: 10.2166/wst.2010.868.Water Sci Technol. 2010.PMID: 20150692