Primary Convener:
Tasneem Ahmadullah, Pacific Northwest National Laboratory

Convener:
Emily Graham, Pacific Northwest National Laboratory
Sophie Lehmann, Pacific Northwest National Laboratory
Nefeli Bompoti, University of Massachusetts Dartmouth

Chair:
Godwin Sunday, University of Massachusetts Dartmouth

Understanding the interactions of soil organic matter (SOM), minerals, and emerging contaminants with environmental processes is essential for assessing their impact on agricultural and urban soils. This session will spotlight recent advancements and methodologies in analyzing these components using advanced techniques. Pyrolysis Gas Chromatography-Mass Spectrometry (Py-GCMS), a long-standing tool for studying complex organic matter, is gaining popularity due to its minimal sample preparation and high-resolution data output. Similarly, Isotope Ratio Mass Spectrometry (IRMS) has been used for years to measure stable isotope ratios in environmental samples. Combining Py-GCMS and IRMS offers unique benefits in tracing organic matter sources and assessing the stability of mineral-associated organic matter. The session will integrate diverse areas of interest—Mineral-Associated Organic Matter (MAOM); emerging contaminants like microplastics and PFAS; and Py-GCMS, IRMS, and other advanced technologies that provide a comprehensive view of soil dynamics, contaminant impacts on biogeochemistry, and the transformative influence of modern analytical techniques.

Index Terms
0432 Contaminant and organic biogeochemistry
0454 Isotopic composition and chemistry
0463 Microbe|mineral interactions
0470 Nutrients and nutrient cycling

Neighborhoods:
3. Earth Covering