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.
Cantwell RE, Hofmann R.Cantwell RE, et al. Among authors: hofmann r.Water Res. 2008 May;42(10-11):2729-35. doi: 10.1016/j.watres.2008.02.002. Epub 2008 Feb 17.Water Res. 2008.PMID: 18316110
Cantwell RE, Hofmann R.Cantwell RE, et al. Among authors: hofmann r.Water Res. 2011 Jan;45(3):1322-8. doi: 10.1016/j.watres.2010.10.020. Epub 2010 Oct 21.Water Res. 2011.PMID: 21074821