Spatial Eigenvector Predictive Mapping Using a Second Order Eigenfunction Eigen-decomposition Autocorrelation Specification in a Regional Convolution Neural Network in a Geo-Intelligent Smartphone App to Identify Lead Contamination in Primary and Secondary Schools in Hillsborough County, USA
DOI:
https://doi.org/10.14738/bjhr.1301.19722Keywords:
Hot Spot, Eigen-decomposition Algorithm, R-CNN, ML, Geo-AI, iOS, Hillsborough County, Blood Lead Level, Lead ContaminationAbstract
Currently, there are no lead-contamination models to describe the locations of aggregation/non-aggregation sites (i.e., hot-and-cold spots) in Hillsborough County, Florida, USA. We generated a Global Moran's index (I) of spatial autocorrelation to identify hot-and-cold spots of lead contamination in Hillsborough County. The data used were based on lead sampling of water sources within the internal environments of elementary, middle, and high schools. A second-order eigenfunction eigen-decomposition algorithm embedded in a regional convolutional neural network (R-CNN) machine learning [ML] in a geo-spatial artificial intelligence [geo-AI] smartphone application yielded a model that identified Kingswood Elementary School as the most clustered geographic location with the highest lead contamination concentration levels. The spatial autocorrelation model also identified Essrig Elementary School as the least clustered geographic capture point. The Moran's I diagnostic summary plot revealed a final Z-score of 8.347 and a p-value of 0.000. Mapping hotspots of lead concentration using a second-order eigenfunction eigen-decomposition algorithm within an instantaneous R-CNN, ML, geo-AI, iOS pipeline can allow school administrative boards and policymakers to allocate resources to at-risk areas with lead contamination.
References
Mayo Foundation for Medical Education and Research. (2025). Lead poisoning. Mayo Clinic. https://www.mayoclinic.org/diseases-conditions/lead-poisoning/symptoms-causes/syc-
Heidari, S., Mostafaei, S., Razazian, N., Rajati, M., Saeedi, A., & Rajati, F. (2022). The effect of lead exposure on IQ test scores in children under 12 years: A systematic review and meta-Scholar Publishing analysis of case-control studies. Systematic Reviews, 11(1). https://doi.org/10.1186/s13643-022-01963-y
Donzelli, G., Carducci, A., Llopis-Gonzalez, A., Verani, M., Llopis-Morales, A., Cioni, L., & Morales-Suárez-Varela, M. (2019, January 29). The association between lead and attentiondeficit/hyperactivity disorder: A systematic review. International Journal of Environmental Research and Public Health. https://pmc.ncbi.nlm.nih.gov/articles/PMC6388268/
Kamat, A. (2024). Screening for lead poisoning | Pediatric Care Online. Screening for Lead Poisoning. https://publications.aap.org/pediatriccare/article/doi/10.1542/aap.ppcqr.396030/62/Screening-for-Lead-Poisoning
McFarland, M. J., Hauer, M. E., & Reuben, A. (2022). Half of US population exposed to adverse lead levels in early childhood. Proceedings of the National Academy of Sciences, 119(11). https://doi.org/10.1073/pnas.2118631119
Centers for Disease Control and Prevention. (2024). Florida. Centers for Disease Control and Prevention. https://www.cdc.gov/lead-prevention/success-stories-by-state/florida.html
Griffith DA (2003) Spatial autocorrelation and spatial filtering: Gaining understanding through theory and scientific visualization. Springer, Berlin, Germany.
Jacob BG, Izureta R, Bell J, Parikh J, Aceng JR, et al. (2023) Approximating nonasymptoticalness, skew heteroscedascity and geo-spatiotemporal multicollinearity in posterior probabilities in Bayesian eigenvector eigen-geospace for optimizing hierarchical diffusion-
Jacob, B., McDonald, H., & Bohn, J. (2024). Closing the gap on addiction recovery engagement with an AI-infused convolutional neural network technology application—a design vision. American Journal of Neural Networks and Applications, 10(1), 1–14. https://doi.org/10.11648/j.ajnna.20241001.11
Hillsborough County - Data Commons. Home - Data Commons. (n.d.). https://datacommons.org/place/geoId/12057?q=hillsbourough%2Bcounty%2Bflorida
Schroeder, J., Van Riper, D., Manson, S., Knowles, K., Kugler, T., Roberts, F., & Ruggles, S. (2025). IPUMS National Historical Geographic Information System (Version 20.0) [Data set]. IPUMS. https://doi.org/10.18128/D050.V20.0
Hillsborough County Public Schools. Current Water Test Results | Hillsborough County Public Schools. (2025). https://www.hillsboroughschools.org/o/hcps/page/current-water-testresults
Voluntary lead testing program for schools and childcare facilities. Florida Department of Environmental Protection. (2024). https://floridadep.gov/water/certificationrestoration/content/voluntary-lead-testing-program-schools-and-childcare
Environmental Protection Agency. (2025). What do you mean when you say the action level has been exceeded for a drinking water system?. EPA. https://www.epa.gov/lead/what-doyou-mean-when-you-say-action-level-has-been-exceeded-drinking-water-system
Lead exposure in children. Home. (2025). https://www.aap.org/en/patient-care/leadexposure/lead-exposure-inchildren/?srsltid=AfmBOope0fzLTFCVvvD6PqIwuCKGBdbr_oMt9BeZ8z0HF5r7AG19r7ut
Florida Assessment of Student Thinking and B.E.S.T. Assessments. Florida Department of Education. (2025). https://www.fldoe.org/accountability/assessments/k-12-studentassessment/results/2025.stml Scholar Publishing
Search for Public Schools - ESSRIG ELEMENTARY SCHOOL (120087002507). National Center for Education Statistics (NCES). (2024a). https://nces.ed.gov/ccd/schoolsearch/school_detail.asp?Search=1&Zip=33694&Miles=5&ID=1
Search for Public Schools - KINGSWOOD ELEMENTARY SCHOOL (120087000966). National Center for Education Statistics (NCES). (2024). https://nces.ed.gov/ccd/schoolsearch/school_detail.asp?Search=1&ID=120087000966
Digest of Education Statistics. Number and percentage of public school students eligible for free or reduced-price lunch, by state: Selected school years, 2000-01 through 2022-23. (2024). https://nces.ed.gov/programs/digest/d23/tables/dt23_204.10.asp
About the Lead Poisoning Prevention Program. Florida Department of Health. (2024). https://www.floridahealth.gov/environmental-health/lead-poisoning/index.html
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2026 Janessa Monchery, Namit Choudhari, Anusha Parajuli, Aarya Satardekar, Caleb Jaramillo, Sasha Mosich, Benjamin Jacob

This work is licensed under a Creative Commons Attribution 4.0 International License.