National Environmental Methods Index (NEMI)

What's new in NEMI

May 2006

USGS field methods for measurement of pH, D.O., conductance, redox, alkalinity, and temperature are now in NEMI. Also coming soon from USGS are field protocols for the collection of depth- and width-integrated water column samples.

April 2006

NEMI now contains field protocols for biological population/community sampling as well as toxicity test information. Please take a look and let us know what you think.

October 2005

The U.S. Geological Survey’s National Water Quality Laboratory (NWQL) has added methods for procedures for analyzing inorganic and organic constituents in water. Most of NWQL's methods developed within the past 15 years are now in NEMI.

April 15, 2005

NEMI is featured in Environmental Science and Technology.

September 14, 2004

Twenty-one new immunoassay methods were entered into the database.

April 15, 2004

Ten new methods developed by EPA's Office of Research and Development (ORD) and EPA's Office of Ground Water and Drinking Water (OGWDW) have been added to NEMI. Methods developed by ORD include procedures for measuring for chlorophylls in marine waters (445.0, 446.0, 447.0), total organic carbon in source water and drinking water (415.3), and nitrate and nitrite in marine waters (353.4). Methods developed for drinking water by OGWDW include procedures for measuring disinfection byproducts and trace bromate (317.0-Rev. 2.0, 326.0), chlorine dioxide and chlorite (327.0), n-methylcarbamoyloximes and n-methylcarbamates (531.2) and haloacetic acids and dalapon (552.3).

January 28, 2004

Twenty new methods have been added to NEMI from NOAA's Ocean Service National Status and Trends Program managed by the Center for Coastal Monitoring and Assessment and the National Centers for Coastal Ocean Science . The methods, which were published in Technical Memorandum # 130 "Sampling and Analytical Methods of the National Status and Trends Program Mussel Watch Project: 1993-1996 Update (1998)", include procedures for analyzing trace metals and a variety of chemical compounds (e.g., butyltins, PAHs, dioxins) in sediment and tissue.