Vinyl chloride in rural water from pre-1977 applications of PVC pipe

Citation
Wf. Carroll et D. Eckstein, Vinyl chloride in rural water from pre-1977 applications of PVC pipe, J VINYL A T, 7(1), 2001, pp. 43-50
Citations number
11
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Material Science & Engineering
Journal title
JOURNAL OF VINYL & ADDITIVE TECHNOLOGY
ISSN journal
1083-5601 → ACNP
Volume
7
Issue
1
Year of publication
2001
Pages
43 - 50
Database
ISI
SICI code
1083-5601(200103)7:1<43:VCIRWF>2.0.ZU;2-L
Abstract
In the early 1990s, vinyl chloride monomer (VCM) was found in a rural water system that included poly(vinyl chloride) (WC) pipe manufactured prior to 1977. Because VCM, considered a human carcinogen, was nor regulated in pipe until 1977, some pre-1977 pipes could contain it at significant levels. Ma nufacturing processes adopted in 1975 and in place by 1977 reduced VCM leve ls by as much as a factor of 1000. Pipe manufactured by using the newer res in technology does not show detectable VCM migration under any reasonable i nstallation circumstances. Migration of VCM is a function of pipe size, VCM concentration at time of installation, water temperature, and flow rate. H istory, scientific investigations, and conclusions drawn from field investi gations are summarized. Tools for the determination of possible candidate s ystems, potential noncompliance, and remediation, both short-term and long- term, are provided. A spreadsheet-based computer model of diffusion is desc ribed.