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Description
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This document contains the quantitative sensitivity ranking of the BalatonUV–Eq emission model input parameters based on standardized regression coefficients (SRC). The SRC values were derived from a linear regression model fitted to z-score standardized input variables (Φ, Γ, Π, Ω, Δ, Ψ) and the corresponding modelled daily OUVF discharge (ΣUV_day) across 729 full-factorial parameter combinations (3⁶ design). Absolute SRC values represent the relative contribution of each parameter to the variability of the model output. The ranking identifies treated skin surface area (Π), number of bathers (Φ), and application frequency (Ω) as the dominant determinants of sunscreen-derived organic UV-filter emissions into Lake Balaton. Parameters related to sunscreen composition and wash-off processes show comparatively lower relative influence within realistic behavioural and regulatory ranges. This dataset provides the numerical foundation for the sensitivity analysis of the BalatonUV–Eq model and supports transparent evaluation of dominant emission drivers in recreational freshwater systems. |