Characterization of Arsenic Occurrence in Source Waters of U.S. Community Water Systems
美国社区供水系统源水砷含量的刻画
We develop a Bayesian hierarchical model linking arsenic concentrations in the source waters of U.S. community water systems to system characteristics such as source water type and location. This characterization provides a starting point for the assessment of current and required water treatment to meet proposed maximum contaminant level (MCL) standards. After a model validation study based on predictive densities, we use a national census of treatment systems and their…