An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Using strands of DNA to create miniature hinges that pop open or shut when binding to specific molecules, researchers at the National Institute of Standards and
Numerous volatile organic compounds (VOCs) have been identified in human breath. These compounds can be produced by the body or by organisms in the body (e.g., bacteria or viruses) and provide a non-invasive window into human health. Inexpensive point-of-care devices are being developed to diagnose
Over 286 million Americans get their tap water from a community water system. To assure the water safety, bacterial testing must be performed regularly. Major sources of contaminants include human derived sources, such as sewage leaks or combined sewer overflows; and agricultural sources, such as
Perfluorinated and polyfluorinated alkyl substances (PFAS) constitute a family of compounds that are distinguished by partial or complete fluorination of alkyl hydrocarbons. Dubbed “forever chemicals”, the unique chemistry of PFAS imparts a high level of stability, making the compounds resistant to
The three NIST soil SRMs, 2709, 2710 and 2711, have been used worldwide by hundreds of laboratories; combined sales typically exceed 800 units per year. Use of these SRMs provides our customers with tools that are essential for achieving quality assurance in the analysis of contaminant elements in
Jessica Reiner, Bruce Benner, Jennifer Lynch, Jacolin Murray, Alix Rodowa, Meredith Evans Seeley, Katherine Shaw, Benjamin Place
Standard Reference Materials (SRMs) are homogeneous, well-characterized materials that are used to validate measurements and improve the quality of analytical
Tao Li, Steven Buchberger, Toritseju Omaghomi, Gary Klein, William M. Healy
novel wireless sensor network is developed and demonstrated for monitoring indoor fixture level water use in buildings. The new technology consists of a low
Pawel Jaruga, Neil Fuller, Kimani Kimbrough, Michael Edwards, Eric Davenport, Amy Ringwood, Ed Johnson
The Milwaukee Estuary is a highly urbanized and industrialized watershed that was designated as an Area of Concern (AOC) under the 1987 Great Lakes Water
This tool is used for implementing the CO 2 concentration calculations. After providing the relevant inputs, or selecting from a number of predefined cases, the
The web-based tool Virus Particle Exposure in Residences (ViPER) allows users to compare an individual scenario against multiple “what-if” scenarios related to
DESCRIPTION The Standard Reference Photometer (SRP) Program began in the early 1980s as collaboration between NIST and the U.S. Environmental Protection Agency