Evidence of a sewer vapor transport pathway at the USEPA vapor intrusion research duplex.

ABSTRACT: The role of sewer lines as preferential pathways for vapor intrusion is poorly understood. Although the importance of sewer lines for volatile organic compound (VOC) transport has been documented at a small number of sites with vapor intrusion, sewer lines are not routinely sampled during most vapor intrusion investigations. We have used a tracer study and VOC concentration measurements to evaluate the role of the combined sanitary/storm sewer line in VOC transport at the USEPA vapor intrusion research duplex in Indianapolis, Indiana. The results from the tracer study demonstrated gas migration from the sewer main line into the duplex. The migration pathway appears to be complex and may include leakage from the sewer lateral at a location below the building foundation. Vapor samples collec

SUBMITTER: McHugh T 

PROVIDER: S-EPMC6084445 | biostudies-literature | 2017 Nov

REPOSITORIES: biostudies-literature