Publications

SAWGraph research addresses ontologies, knowledge graphs, geospatial analysis, environmental data integration, and PFAS fate and transport. The publications below document key methods, components, analyses, and environmental research developed through or supported by the project.

Featured Research

ContaminOSO: Ontological Foundations and Design Choices for an Ontology for Environmental Contamination Data

Hahmann, T., Schweikert, K., Stephen, S., & Kedrowski, D. K. (2025). In T. Prince Sales, C. Masolo, & C. M. Keet (Eds.), Formal Ontology in Information Systems: Proceedings of the 15th International Conference (FOIS 2025) (pp. 284–298). Frontiers in Artificial Intelligence and Applications, Vol. 409. IOS Press.

Access: DOI: 10.3233/FAIA250501

An Ontology Design Pattern for Industry Classification in the Facilities and Industries Ontology (FIO)

Schweikert, K., & Hahmann, T. (2025). In Proceedings of the Joint Ontology Workshops (JOWO 2025): Episode XI: The Sicilian Summer under the Etna, FOMI: Formal Ontologies Meet Industry Workshop, co-located with the 15th International Conference on Formal Ontology in Information Systems (FOIS 2025). CEUR Workshop Proceedings, Vol. 4176.

Access: PDF

Precomputed Topological Relations for Integrated Geospatial Analysis Across Knowledge Graphs

Schweikert, K., Kedrowski, D. K., Stephen, S., & Hahmann, T. (2025). In 13th International Conference on Geographic Information Science (GIScience 2025). Leibniz International Proceedings in Informatics (LIPIcs), Vol. 346, pp. 4:1–4:22. Schloss Dagstuhl – Leibniz-Zentrum für Informatik.

Access: DOI: 10.4230/LIPIcs.GIScience.2025.4

CompTox Ontology: Leveraging Knowledge Graphs for PFAS Monitoring and Decision-Making

Zhang, Y., Moavenzadeh, S., Amjad, J., Apul, O., Barua, A., Evrendilek, F., Hahmann, T., Hettiarachchi, G., Hitzler, P., Kedrowski, D. K., Kilaru, V., Lashkari, P., Schweikert, K., Williams, A. J., & McGinty, H. (2026). In Proceedings of the ACM Web Conference 2026 (WWW ’26) (pp. 9352–9360). Association for Computing Machinery.

Access: DOI: 10.1145/3774904.3792985 | PDF

Aftermath of a Major Firefighting Foam Spill in Brunswick, Maine: Spatiotemporal Dynamics of Per- and Polyfluoroalkyl Substances in the Downstream Surface Waters

Hannan, M., Evrendilek, F., Leclair, D., Choudhary, M., Mensah, K., Aeppli, C., Venkatesan, A. K., & Apul, O. G. (2025). Journal of Hazardous Materials Letters, Vol. 6, Article 100150.

Access: DOI: 10.1016/j.hazl.2025.100150

A Critical Review of Per- and Polyfluoroalkyl Substances Adsorption by Soil

Moavenzadeh Ghaznavi, S., Choudhary, M., Hannan, M., Hettiarachchi, G. M., & Apul, O. G. (2025). Journal of Hazardous Materials: Organics, Vol. 1, Issue 1, Article 100001.

Access: DOI: 10.1016/j.hazmo.2025.100001

Research Areas

Together, these publications document several areas of SAWGraph research:

Ontology Design and Knowledge Representation: developing reusable semantic models for environmental contamination, facilities and industries, chemical substances, and related data
Knowledge Graph and Geospatial Analysis: connecting heterogeneous data through knowledge graphs and spatial relationships to support integrated analysis and decision-making
PFAS Monitoring and Transport: investigating contamination observations, environmental movement, and changes in PFAS concentrations across space and time
PFAS Fate and Soil Interactions: examining adsorption, mobility, and the relationships among PFAS properties, soil characteristics, and environmental behavior

Questions & Collaboration

For questions about SAWGraph publications or opportunities to collaborate on related research, contact the SAWGraph team or learn more about project participants.

Contact SAWGraph Meet the Research Team