Chemical Emissions of Styrenated CIPP Non-conclusive

摘要

A four-month study on the review of published literature pertaining to chemical emissions of styrene-based resin used in the cured-in-place pipe (CIPP) process, found that existing studies do not adequately capture worker exposures or levels in the surrounding areas to which workers or citizens may be exposed. The study was commissioned by the National Association of Sewer Service Companies (NASSCO) after a 2017 report suggested CIPP workers may be at risk to chemical air emissions exposure. The literature review is the first element in NASSCO's effort to obtain factual information about any risks to workers. The study started last December and completed April 6, 2018, by researchers at the University of Texas at Arlington (UTA) Center for Underground Infrastructure Research and Education (CUIRE), and the Institute for Underground Infrastructure (IKT) in Germany. The team determined that spatial variation of concentrations, and variations in concentrations with different meteorological conditions, are not well-determined.