Water quality-pipe deposit relationships in Midwestern lead pipes.

ABSTRACT: The conventional wisdom of lead-scale solubility has been built over the years by geochemical solubility models, experimental studies, and field sampling utilizing multiple protocols. Rarely, have the mineral phases from scales formed in real-world drinking water lead service lines (LSLs) been compared to theoretical predictions. In this study, model predictions are compared to LSL scales from 22 drinking water distribution systems. The results show that only nine of the 22 systems had LSL scales that followed model predictions. The remaining systems had unpredictable scales some with unknown lead release characteristics demonstrating that predicting scale formation and lead release solely by models cannot be relied on in all cases to protect human health. Therefore, for many systems with

SUBMITTER: Tully J 

PROVIDER: S-EPMC7336533 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature