Monte Carlo Simulation Results for Incremental Lifetime Cancer Risk (ILCR) from Uranium Ingestion in the Nubian Sandstone Aquifer System (NSAS)

This dataset contains 10,000 simulated Incremental Lifetime Cancer Risk (ILCR) values from a probabilistic risk assessment of uranium ingestion from groundwater in the Nubian Sandstone Aquifer System (NSAS). The simulation was performed using a Monte Carlo approach with the following input distributions: Uranium concentration (U_conc): log‑normal (meanlog = 6.29, sdlog = 0.65) Ingestion rate (IR): triangular (min = 1.5, mode = 2.5, max = 3.5 L/day) Exposure frequency (EF): uniform (300–365 days/year) Exposure duration (ED): uniform (30–70 years) Body weight (BW): normal (mean = 70, sd = 10 kg) Dose conversion factor (DCF): 4.5 x 10-8 Sv/Bq Conversion factor: 0.0254 Bq/µg ILCR Formula:ILCR = (U_conc x IR x EF x Bq_per_ug x DCF x ED) / BW Summary Statistics: Mean ILCR: 2.97 x 10-4 95th percentile: 7.67 x 10-4 Exceedance fraction (ILCR > 10-4): 78.0% File format: CSV (comma‑separated values). Columns: Probability and ILCR Value. Related manuscript: Rahim, B. E. A. (in review). Transboundary Water at Risk.