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Environment

Air / water / soil quality

News and Updates

Projects and Programs

MNP Metrology Program

Microplastic and Nanoplastic Metrology

Ongoing
The Micro and Nanoplastic (MNP) Metrology Project aims to develop a toolbox of methods for size-based separations from complex matrices, chemical characterization protocols, and test materials necessary to enable quantification of micro- and nano-sized plastic particles, a need articulated by our
Photo montage showing fill the airplane with fire-fighting foam, a spilled glass of wine on the tablecloth. Cleaning clothes and furniture from stains, Discarded Fast Food Wrappers Littered on Ground, wateproof jacket with water droplets on it. Jacket using the gore-tex technology.

Per- and Polyfluoroalkyl Substances (PFAS)

Ongoing
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
Photograph of a unit of SRM 2668 with labeled box and frozen plastic vials.

Measurements and Standards for Contaminants in Biological (Human) Materials

Ongoing
The development of SRMs to support measurements for contaminants in biological fluids and tissues will expand quality assurance capabilities to important species critical to human health. We will provide SRMs that are representative of the analytical challenges that may be encountered by analysts in

Publications

Software

CO2

Quick Indoor CO2 (QICO2) Tool

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

Tools and Instruments

Ozone Standard Reference Photometer

DESCRIPTION The Standard Reference Photometer (SRP) Program began in the early 1980s as collaboration between NIST and the U.S. Environmental Protection Agency

Awards