Release of Bisphenol A and Other Volatile Chemicals from New Epoxy Drinking Water Pipe Liners: The Role of Manufacturing Conditions.

ABSTRACT: Cured-in-place-pipe (CIPP) technology has begun to be adopted for drinking water pipe repairs, and limited information exists about its drinking water quality impacts. CIPP involves the manufacture of a new plastic pipe inside a buried damaged pipe. In this study, the chemical composition of the raw materials and CIPP water quality impacts were examined. Numerous (47) VOCs and SVOCs were found in the resin and two hardeners were studied. TGA results indicated that new CIPPs contained about 3.2-4.8 wt% VOC. A controlled static headspace analysis using PTR-TOF-MS detected eight protonated ions (m/z < 114) with mixing ratios above 1 ppb and phenol was identified as the most abundant VOC released into air. The analytical methods were unable to identify 99.9% of the extractable VO

SUBMITTER: Pahari P 

PROVIDER: S-EPMC11741100 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature