Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Brass corrosion as a source of lead and copper in traditional and all‐plastic distribution systems
The US Environmental Protection Agency's Lead and Copper Rule (LCR) attempts to minimize exposure to waterborne lead and copper by sampling water at the consumer's tap. The LCR assumes that the major long‐term sources of both elements are lead solder, copper plumbing, lead plumbing, and lead service lines and that brass plays only a transient role. This assumption was tested through a natural experiment. A number of houses using all‐plastic plumbing, in which the only sources of lead or copper were brass fixtures, were sampled and analyzed for lead and copper. Results were compared with those from homes in Southern California with traditional plumbing. The concentrations of the four indicator elements of brass corrosion, i.e., copper, lead, nickel, and zinc, not only were higher in the all‐plastic‐plumbing houses, but the ratio of elements and correlation coefficients were very similar in the two populations. These results point to brass corrosion as a main contributor of copper and lead found in LCR samples.
Brass corrosion as a source of lead and copper in traditional and all‐plastic distribution systems
The US Environmental Protection Agency's Lead and Copper Rule (LCR) attempts to minimize exposure to waterborne lead and copper by sampling water at the consumer's tap. The LCR assumes that the major long‐term sources of both elements are lead solder, copper plumbing, lead plumbing, and lead service lines and that brass plays only a transient role. This assumption was tested through a natural experiment. A number of houses using all‐plastic plumbing, in which the only sources of lead or copper were brass fixtures, were sampled and analyzed for lead and copper. Results were compared with those from homes in Southern California with traditional plumbing. The concentrations of the four indicator elements of brass corrosion, i.e., copper, lead, nickel, and zinc, not only were higher in the all‐plastic‐plumbing houses, but the ratio of elements and correlation coefficients were very similar in the two populations. These results point to brass corrosion as a main contributor of copper and lead found in LCR samples.
Brass corrosion as a source of lead and copper in traditional and all‐plastic distribution systems
Kimbrough, David Eugene (Autor:in)
Journal ‐ American Water Works Association ; 99 ; 70-76
01.08.2007
7 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Corrosion inhibition of brass and copper pigments by polymers
| British Library Online Contents | 2001
Brass corrosion in tap water distribution systems inhibited by phosphate ions
| British Library Online Contents | 2011
Grain Boundary Character Distribution and its Effect on Corrosion Resistance of Copper and Brass
| British Library Online Contents | 2012