Temporal Variability of Indoor Air Concentrations under Natural Conditions in a House Overlying a Dilute Chlorinated Solvent Groundwater Plume

Current vapor intrusion (VI) pathway assessment heavily weights concentrations from infrequent (monthly–seasonal) 24 h indoor air samples. This study collected a long-term and high-frequency data set that can be used to assess indoor air sampling strategies for answering key pathway assessment quest...

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Veröffentlicht in:	Environmental science & technology 2013-12, Vol.47 (23), p.13347-13354
Hauptverfasser:	Holton, Chase, Luo, Hong, Dahlen, Paul, Gorder, Kyle, Dettenmaier, Erik, Johnson, Paul C
Format:	Artikel
Sprache:	eng
Schlagworte:	Air Pollutants - analysis Air Pollution, Indoor - analysis Applied sciences Atmospheric pollution Buildings. Public works Environmental Monitoring Environmental testing Exact sciences and technology Groundwater Groundwater - analysis Housing Indoor air quality Indoor pollution and occupational exposure Pollution Pollution indoor buildings Sampling Seasons Solvents Solvents - analysis Trichloroethylene - analysis Water Pollutants, Chemical - analysis
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Zusammenfassung:	Current vapor intrusion (VI) pathway assessment heavily weights concentrations from infrequent (monthly–seasonal) 24 h indoor air samples. This study collected a long-term and high-frequency data set that can be used to assess indoor air sampling strategies for answering key pathway assessment questions like: “Is VI occurring?”, and “Will VI impacts exceed thresholds of concern?”. Indoor air sampling was conducted for 2.5 years at 2–4 h intervals in a house overlying a dilute chlorinated solvent plume (10–50 μg/L TCE). Indoor air concentrations varied by 3 orders of magnitude (
ISSN:	0013-936X 1520-5851
DOI:	10.1021/es4024767