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Contributions to drinking water lead from galvanized iron corrosion scales
Replacement of lead service lines can cause elevated lead levels immediately after construction, even after removal of the full lead source. Recent data collected by the District of Columbia Water and Sewer Authority in Washington, D.C., indicated that this can be partly attributed to lead release from iron corrosion scales on old, galvanized in‐home plumbing. This article summarizes a three‐part study investigating the phenomenon of capture and release of lead mobilized from an upstream service line by iron corrosion scales in galvanized plumbing. The study used profile sampling data from homes in the District of Columbia, corrosion scale analyses, and pipe‐loop experiments to examine whether iron corrosion scales can contribute meaningfully to drinking water lead. The study concluded that iron corrosion scales can be a persistent lead source, identified factors that can trigger release, and characterized potential long‐term effects.
Contributions to drinking water lead from galvanized iron corrosion scales
Replacement of lead service lines can cause elevated lead levels immediately after construction, even after removal of the full lead source. Recent data collected by the District of Columbia Water and Sewer Authority in Washington, D.C., indicated that this can be partly attributed to lead release from iron corrosion scales on old, galvanized in‐home plumbing. This article summarizes a three‐part study investigating the phenomenon of capture and release of lead mobilized from an upstream service line by iron corrosion scales in galvanized plumbing. The study used profile sampling data from homes in the District of Columbia, corrosion scale analyses, and pipe‐loop experiments to examine whether iron corrosion scales can contribute meaningfully to drinking water lead. The study concluded that iron corrosion scales can be a persistent lead source, identified factors that can trigger release, and characterized potential long‐term effects.
Contributions to drinking water lead from galvanized iron corrosion scales
McFadden, Matthew (author) / Giani, Richard (author) / Kwan, Pierre (author) / Reiber, Steven H. (author)
Journal ‐ American Water Works Association ; 103 ; 76-89
2011-04-01
14 pages
Article (Journal)
Electronic Resource
English
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