Pollution/Indoor Air Quality PortalPrograms and Projects
Differential Absorption LIDAR Test Bed Facility for the Detection and Quantification of Greenhouse Gases
We are developing a method for accurately quantifying greenhouse gas emissions from natural and anthropogenic sources and sinks to meet the … more
Monitoring Contaminants in the Arctic and Subarctic Using Banked Seabird Eggs
More than 95% of the seabirds breeding in the continental United States nest at colonies in the Bering and Chukchi seas and Gulf of Alaska. In … more
Measurements and Standards for Contaminants in Biological (Human) Materials
For the past 25 years NIST has developed a number of biological fluid and tissue Standard Reference Materials (SRMs) primarily for clinically … more
Certification of Three Soil SRMs for Inorganic Environmental Measurements
Analysis of soils for metals and other elements is essential in assessing environmental compliance and the impacts of potentially toxic elements … more
Mercury Vapor Pressure Correlation
An apparent difference between the historical mercury vapor concentration equations used by the mercury atmospheric measurement community and a … more
Standard Reference Materials for Hexavalent Chromium in Contaminated Soil
Significant environmental remediation efforts are being conducted to address the hazards posed by the long-term terrestrial disposal of hexavalent … more |
 First Test Labs for Next-Generation Internet Protocol (IPv6) Are Accredited  Closeup photomicrograph of rotifer B. calyciflorus (whole organism seen in upper left corner) with quantum dots assimilated from ingested ciliates appearing red.  Silver nanoswitch: when the voltage between a gold conductor (top) and silver conductor (bottom) exceeds a critical point, silver ions rapidly assemble like a lightning strike to bridge the gap through a organic molecule monolayer.  In-depth look: An image of gold atoms on tin from a state-of-the-art scanning electron microscope (left) has relatively poor depth of field - only parts of the image are in sharp focus. By contrast, the entire image from a helium ion microscope image (rig Contact General Information: 100 Bureau Drive, Stop 1070 |