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.
Yang L, Han J, Xue J, Zeng L, Shi J, Wu L, Jiang Y.Yang L, et al.Sci Total Environ. 2013 Oct 1;463-464:340-7. doi: 10.1016/j.scitotenv.2013.06.021. Epub 2013 Jun 29.Sci Total Environ. 2013.PMID: 23820008
Gu H, Chen Y, Liu X, Wang H, Shen-Tu J, Wu L, Zeng L, Xu J.Gu H, et al.Sci Total Environ. 2017 Sep 1;593-594:695-703. doi: 10.1016/j.scitotenv.2017.03.205. Epub 2017 Mar 28.Sci Total Environ. 2017.PMID: 28363181