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Ground Water Monit Remediat

Title:		MODELING FATE AND TRANSPORT OF VOLATILE ORGANIC COMPOUNDS (VOCs) INSIDE SEWER SYSTEMS
Author(s):		Roghani M; Li Y; Rezaei N; Robinson A; Shirazi E; Pennell KG;
Address:		"University of Kentucky, College of Engineering, Department of Civil Engineering"
Journal Title:		Ground Water Monit Remediat
Year:		2021
Volume:		20210412
Issue:		2
Page Number:		112 - 121
DOI:		10.1111/gwmr.12449
ISSN/ISBN:		1069-3629 (Print) 1745-6592 (Electronic) 1069-3629 (Linking)
Abstract:		"Hazardous waste site investigations have shown that volatile organic compounds (VOCs) can be transported via sewer pipes and migrate into indoor spaces. Despite field data confirming the presence of this exposure pathway, there is lack of context-based numerical models that provide guidance to characterize and predict VOCs concentration in sewer gas at vapor intrusion sites. Particularly, this poses a challenge when assessing and mitigating risks associated with these exposure pathways. Therefore, a numerical model has been developed to simulate the concentration of VOCs in sewer gas in different stages throughout the sewer lines. The developed model considers various input parameters, including temperature, sewer liquid depth, groundwater depth, and sewer construction characteristics to incorporate local and operational conditions. The model's output is verified using field data from a sewer system constructed near a Superfund site. Moreover, a sensitivity analysis was conducted to evaluate the model's response to variation of the external input parameters. To the best of our knowledge, this study is the first attempt to model VOCs concentration in sewer gas, particularly to address vapor intrusion. The developed model can be used as a numerical tool to support the development of sewer assessment guidelines, risk assessment studies, and mitigation strategies"
Keywords:
Notes:		"PubMed-not-MEDLINERoghani, Mahammadyousef Li, Ying Rezaei, Nader Robinson, Ariel Shirazi, Elham Pennell, Kelly G eng P30 ES026529/ES/NIEHS NIH HHS/ P42 ES007380/ES/NIEHS NIH HHS/ 2022/01/13 Ground Water Monit Remediat. 2021 Spring; 41(2):112-121. doi: 10.1111/gwmr.12449. Epub 2021 Apr 12"