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New Standard Reference Materials (SRMs) consisting of activated carbon sorbent materials and flue gas desulfurization (FGD) gypsum are being developed to
Advanced microscopy and spectroscopy techniques are used in this project to study the chemical and physical properties of particles contained in complex
Atmospheric particles with long atmospheric lifetimes affect Earth's radiative balance. These particles typically consist of multiple chemical species. The
Analysis of soils for metals and other elements is essential in assessing environmental compliance and the impacts of potentially toxic elements on human
The National Institute of Standards and Technology (NIST) is working to advance measurement capabilities needed to study the world’s climates. Climate Science
As a result of the environmental impact of mercury and the neurotoxic risk associated with trophic transfer of methyl mercury to humans, the reduction of
NMR spectroscopy is routinely used to analyze chemical mixtures in the liquid phase. It is far less common for these techniques to be applied to vapor-phase
To support regulatory and industry requirements for reference materials and standards, NIST produces and maintains a large inventory of fossil fuel SRMs that
For the past 25 years NIST has developed a number of biological fluid and tissue Standard Reference Materials (SRMs) primarily for clinically important analytes
Given the substantial differences between nanoparticles (NPs) and typical organic and inorganic environmental contaminants, new experimental methods and
The mission of the Micro and Nanoplastic (MNP) Metrology Project is to assist regulators in assessing the human health and environmental risks associated with
This project develops and applies metrologies and standards for characterizing microstructure and dynamics in advanced functional materials of technological
The NIST Standard Reference Photometer (SRP), developed jointly with the U.S. Environmental Protection Agency (USEPA), has provided an infrastructure for the
In 1999, the U.S. Fish and Wildlife Service Alaska Maritime National Wildlife Refuge (USFWS-AMNWR), the U.S. Geological Survey Biological Resources Division
Significant environmental remediation efforts are being conducted to address the hazards posed by the long-term terrestrial disposal of hexavalent chromium in
Contamination of waterways with fecal material leads to the dissemination of pathogens and antibiotic-resistant bacteria that can have serious impacts on human
We develop and deploy portable vapor sampling instruments to collect detailed chemical information in the field, in sampling situations where the laboratory is
Wastewater surveillance is a promising approach to monitor biological and chemical contaminants on a community level, as demonstrated by its re-emergence as a