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Updated: Jan 15, 2026

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Physical, Chemical and Biological Characterization of Six Biochars Produced for the Remediation of Contaminated Sites
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The Abiotic Background as a Central Component of a Sample Safety Assessment Protocol for Sample Return
Bronwyn L Teece1, David W Beaty1, Heather V Graham2
1NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, USA.
Astrobiology
|October 10, 2025
Summary
NASA
Area of Science:
- Astrobiology and Planetary Science
- Planetary Protection
- Analytical Chemistry
Background:
- NASA's Perseverance rover is collecting Martian samples for Earth return.
- Returned samples require biological containment to prevent potential biohazards.
- Assessing sample safety is crucial before releasing them from containment.
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