Science Advances

Supplementary Materials

This PDF file includes:

  • fig. S1. Maps of spatial distribution and values of all chemical parameters.
  • fig. S2. Grids of all measured chemical parameters.
  • fig. S3. Hazard maps of logistic regression models using thresholds of 10 and 50 μg/liter.
  • fig. S4. Maps of other well-fitting logistic regression models.
  • fig. S5. Statistics of logistic regression model using threshold of 50 μg/liter.
  • fig. S6. Density of population at risk using logistic regression models with thresholds of 10 and 50 μg/liter.
  • fig. S7. Predictor data sets used in the final model.
  • fig. S8. Graphs of correlation between predictor variables and percentage of As measurements >10 μg/liter.
  • table S1. Summary statistics of all measured parameters.
  • table S2. Coefficients, SDs, and frequencies of predictor variables in logistic regressions with a threshold of 10 μg/liter.
  • table S3. Coefficients, SDs, and frequencies of predictor variables in logistic regressions with a threshold of 50 μg/liter.

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