BOOK OF ABSTRACTS 155 IHSS&IWA26 / BRNO / CZECHIA / 23–28 August 2026 Friday, 28 August 2026 / Hall C Environment, Agriculture, and Forestry Igeo for Pb was 4.23, classifying the soil as heavily to extremely contaminated. For Sb, Igeo ranged from 7.62 to 7.98, indicating extreme contamination. CPI was highest in SR samples, mainly driven by Sb and Pb, reaching 70.94, which characterizes a critical contamination level. In soil samples (SR/S), CPI reached 25.71, indicating contamination at deeper layers. PCA explained 82% of variance (PC1: 70.9%; PC2: 11.1%). PC1 represented a contamination gradient with strong correlations between metals and geochemical indices. PC2 correlated with As, its indices, pH, and OM/TOC, suggesting retention by the organic fraction. Overall, OM and pH were most associated with contamination levels, indicating reduced mobility and enhanced retention in the soil surface. These findings demonstrate that sports shooting alters soil chemistry and promotes accumulation of toxic elements. Contamination indices revealed very high contamination levels, particularly for As, Sb, and Hg, even at relatively low concentrations. This study supports integrated soil preservation strategies, highlighting contamination in shooting ranges as a shared risk across animal, environmental, and human health within a One Health framework. References 1. Skalny AV, et al. Environmental and health hazards of military metal pollution. Environ Res. 2021;201:111568. 2. Vig K, et al. Bioavailability and toxicity of cadmium to microorganisms and their activities in soil. Adv Environ Res. 2003;8(1):121–135. Acknowledgement The authors thank the Foundation for Science and Technology of the State of Pernambuco (FACEPE, Brazil) for the for the fellowship awarded to M.E.S.Gonçalves (Process IBPG-05881.06/25) and M.R.Moraes (Process BIC1585-1.06/24).
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