Abstract
Polyphosphates may increase lead solubilityviacomplexation, but the risk is not well characterized. Size-exclusion chromatography with multi-element detection could help determine the prevalence of lead-polyphosphate complexes in drinking water.
Highlights
Lead service lines (LSLs) were installed widely throughout the first half of the twentieth century; in the United States, millions remain in place.[1]
High blood lead levels in childhood are strongly associated with lasting deficits in cognitive and academic skills.[5,6,7,8]
Data from a pilot-scale model of system A46 were consistent with the apparent reversion of polyphosphate in field samples: as a linear predictor, phosphorus in LSL effluent explained 99% of the variation in orthophosphate (β1 = 2.8 ± 0.3, 95% CI)
Summary
Lead service lines (LSLs) were installed widely throughout the first half of the twentieth century; in the United States, millions remain in place.[1].
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