nist-gov/www.nist.gov/topic-terms/environment
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<p>Through its partnerships with industry, government, and academia, NIST is helping to advance measurements and tools for environmental science, for example by calibrating the sensors of climate-mapping satellites and detecting ever more minute quantities of toxins and pollutants in our air, soil, water and blood.</p>
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<div class="entity-reference"> <a href="/programs-projects/recaptured-and-reclaimed-plastic-measurements" hreflang="en"><img loading="lazy" src="/sites/default/files/styles/thumbnail/public/images/2025/01/17/Recaptured%20Reclaimed%20Plastics%20%282%29.png?itok=s7eRlYrq" width="100" height="96" alt="Graphic depicting the complexity of reclaimed and recaptured plastics. Textiles (arm chair, t-shirt, and spool of yarn), plastic containers (jug, rectangular food containers, and bag), and gaoline pump - along with chemical structures surround a globe with the bottom half covered with three buildings and half of a mechanical gear." typeof="foaf:Image" />
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<h3 class="nist-teaser__title"><a href="/programs-projects/recaptured-and-reclaimed-plastic-measurements"><span>Recaptured and Reclaimed Plastic Measurements</span>
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<div class="text-with-summary"> Plastics are a complex mixture of various types of polymers with different chemical structures, shapes, and chemical additives. From microscopic nanoplastics (as small as 1 nm) to large megaplastics (over 1 m), plastic poses significant measurement science challenges. By developing accurate methods
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<div class="entity-reference"> <a href="/programs-projects/and-polyfluoroalkyl-substances-pfas" hreflang="en"><img loading="lazy" src="/sites/default/files/styles/thumbnail/public/images/2023/10/11/Per-%20and%20Polyfluoroalkyl%20Substances.jpg?itok=pjkAWDZ-" width="100" height="67" alt="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." typeof="foaf:Image" />
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<div class="text-with-summary"> 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
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<div class="entity-reference"> <a href="/programs-projects/establishing-measurement-traceability-gaseous-mercury-emissions-monitoring" hreflang="en"><img loading="lazy" src="/sites/default/files/styles/thumbnail/public/images/2018/07/10/hg-emissions_1.jpg?itok=53TlayiZ" width="100" height="47" typeof="foaf:Image" />
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<h3 class="nist-teaser__title"><a href="/programs-projects/establishing-measurement-traceability-gaseous-mercury-emissions-monitoring"><span>Establishing Measurement Traceability for Gaseous Mercury Emissions Monitoring</span>
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<div class="text-with-summary"> On May 18, 2005 the EPA promulgated the Clean Air Mercury Rule (CAMR), an amendment to the Clean Air Act, which established performance standards for the mercury output of new and existing coal-fired power plants. The rule was designed to significantly reduce mercury emissions from coal-fired power
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about="/programs-projects/fundamental-guided-wave-metrology" class="nist-teaser"
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<div class="entity-reference"> <a href="/programs-projects/fundamental-guided-wave-metrology" hreflang="en"><img loading="lazy" src="/sites/default/files/styles/thumbnail/public/images/2018/07/10/fundamental_wave_web.jpg?itok=wZaGarNh" width="100" height="67" typeof="foaf:Image" />
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<div class="text-with-summary"> The science of microwave measurements is expanding in many different directions. There is a constant push to use higher frequencies. Signals are becoming much more complex and include modulation effects, multiport/differential signals, complex waveforms, and other unusual signal schemes. On-wafer
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<div class="text-long"><p>For 40 years, NIST has been involved in archiving biological and environmental specimens in its biorepository. The specimen range from&nbsp;human livers, marine sediments, and fish tissues to&nbsp;mussels, oysters, marine mammal tissues, bird eggs and feathers, and sea turtle tissues and eggs. This national biorepository,&nbsp;located at the&nbsp;<a href="https://www.nist.gov/mml/hollings-marine-laboratory">Hollings Marine Laboratory</a>&nbsp;in Charleston, S.C., is a unique resource that processes and preserves biospecimens at cryogenic temperatures (-150 °C), as well as the associated data, that are maintained through multiple partner projects.&nbsp;</p></div>
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<a href="/blogs/taking-measure/tracking-hormones-land-and-sea"> <div class="entity-reference"> <img loading="lazy" src="/sites/default/files/styles/600w_x_360h/public/images/2023/03/30/nist_noaa-nmmf_field-collection-picture.jpg.webp?itok=Q0a2yRru" width="600" height="360" alt="NIST Charleston researchers Ashley Boggs-Russell (sitting) and Amanda Moors (standing) work with researchers from the National Oceanic and Atmospheric Administration and the National Marine Mammal Foundation to process tissue samples during veterinary assessments of wild bottlenose dolphins in the Gulf of Mexico following the 2010 Deepwater Horizon oil spill. No dolphins were harmed in this process." typeof="foaf:Image" />
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<h3><span>Tracking Hormones on Land and at Sea</span>
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<div class="text-with-summary"> Its usually pretty straightforward to explain how my work on clinical measurements is a benefit to society, but sometimes I get confused looks when I tell people about my work on whales, alligators and fish, to name a few. At the National Institute of Standards and Technology (NIST), I work on measurement science for endocrinology. Endocrinology is the science of hormones such as the commonly
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<h3><span property="schema:name">NIST Database Can Help Increase Recycling of Textiles and Clothing</span>
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<h3><span property="schema:name">NIST &amp; ASTM International Publish Report Highlighting Standards Needs for Circular Textiles</span>
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<h3><span property="schema:name">Spotlight: NIST Dives In to Help Measure Ocean Color</span>
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