부산대학교 도서관

In the United States, polyurethane floors are often installed in school gymnasium floors as a substitute to hard wood. In recent years, it has been identified that many of these floors were installed with the use of phenylmercuric acetate as a catalyst and has resulted in the off gassing of mercury vapors.Some states, such as New Jersey, recommend the removal of these floors if mercury vapors are identified at 0.08 ug/m3 or greater.This case study will describe the initial bulk sampling of a gymnasium floor, exposure monitoring, remedial design, and removal procedures of a polyurethane gymnasium floor in an elementary school in New Jersey. The case study will review the positives and negatives of removing the floor as compared to management in place with additional ventilation. It will describe the sampling and analytical methods and procedures as well as the engineering controls used during remediation.New Jersey was one of the first states to identify and address the hazards associated with the polyurethane floors. This case study is an attempt to share the value of the testing and remediation to determine if a greater focus should be required on a global scale.