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INTEGRATED FIELD-SCALE, LAB-SCALE, AND MODELING STUDIES FOR IMPROVING OUR ABILITY TO ASSESS THE GROUNDWATER TO INDOOR AIR PATHWAY AT CHLORINATED SOLVENT-IMPACTED GROUNDWATER SITES
Johnson, P.C., C. Holton, Y. Guo, P. Dahlen, H. Luo, K. Gorder, E. Dettenmaier, and R.E. Hinchee.
SERDP Project ER-1686, 248 pp, 2016
This project was conducted primarily at a house overlying a dilute chlorinated hydrocarbon (TCE) groundwater plume. The house was outfitted with sensors and automated systems to facilitate monitoring of indoor air and ambient and building conditions as well as groundwater and soil gas. Monitoring was conducted under both natural and controlled building conditions, and both TCE and radon were quantified in indoor air and soil gas. Sampling was conducted under natural conditions for about 2.5 yr. Two recurring behaviors were observed with the indoor air data. The temporal behavior prevalent in fall, winter, and spring involved time-varying impacts intermixed with sporadic periods of inactivity. In summer, VI had long periods of inactivity combined with sporadic VI impacts. Subsurface concentrations were less temporally variable than indoor air, and the variability increased in moving from the source to indoor air. https://www.serdp-estcp.org/content/download/39774/382131/file/Final%20Report%20V2%20ER-1686%20July%202016%20FOR%20POSTING.pdf
SERDP Project ER-1686, 248 pp, 2016
This project was conducted primarily at a house overlying a dilute chlorinated hydrocarbon (TCE) groundwater plume. The house was outfitted with sensors and automated systems to facilitate monitoring of indoor air and ambient and building conditions as well as groundwater and soil gas. Monitoring was conducted under both natural and controlled building conditions, and both TCE and radon were quantified in indoor air and soil gas. Sampling was conducted under natural conditions for about 2.5 yr. Two recurring behaviors were observed with the indoor air data. The temporal behavior prevalent in fall, winter, and spring involved time-varying impacts intermixed with sporadic periods of inactivity. In summer, VI had long periods of inactivity combined with sporadic VI impacts. Subsurface concentrations were less temporally variable than indoor air, and the variability increased in moving from the source to indoor air. https://www.serdp-estcp.org/content/download/39774/382131/file/Final%20R
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