The potted-plant microcosm substantially reduces indoor air VOC pollution: II. Laboratory study

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Show simple item record Orwell, RL Wood, RA Burchett, MD Tarran, J Torpy, F 2009-12-21T02:29:31Z 2006-11
dc.identifier.citation Water, Air, and Soil Pollution, 2006, 177 (1-4), pp. 59 - 80
dc.identifier.issn 0049-6979
dc.identifier.other C1 en_US
dc.description.abstract Indoor air-borne loads of volatile organic compounds (VOCs) are usually significantly higher than those outdoors, and chronic exposures can cause health problems. Our previous laboratory studies have shown that the potted-plant microcosm, induced by an initial dose, can eliminate high air-borne VOC concentrations, the primary removal agents being potting-mix microorganisms, selected and maintained in the plant/root-zone microcosm. Our office field-study, reported in the preceding paper, showed that, when total VOC (TVOC) loads in reference offices (0 plants) rose above about 100 ppb, levels were generally reduced by up to 75% (to < 100 ppb) in offices with any one of three planting regimes. The results indicate the induction of the VOC removal mechanism at TVOC levels above a threshold of about 100 ppb. The aims of this laboratory dose-response study were to explore and analyse this response. Over from 5 to 9 days, doses of 0.2, 1.0, 10 and 100 ppm toluene and m-xylene were applied and replenished, singly and as mixtures, to potted-plants of the same two species used in the office study. The results confirmed the induction of the VOC removal response at the lowest test dosage, i.e in the middle of the TVOC range found in the offices, and showed that, with subsequent dosage increments, further stepwise induction occurred, with rate increases of several orders of magnitude. At each dosage, with induction, VOC concentrations could be reduced to below GC detection limits (< 20 ppb) within 24 h. A synergistic interaction was found with the binary mixtures, toluene accelerating m-xylene removal, at least at lower dosages. The results of these two studies together demonstrate that the potted-plant microcosm can provide an effective, self-regulating, sustainable bioremediation or phytoremediation system for VOC pollution in indoor air. © 2006 Springer Science+Business Media, Inc.
dc.language eng
dc.relation.isbasedon 10.1007/s11270-006-9092-3
dc.title The potted-plant microcosm substantially reduces indoor air VOC pollution: II. Laboratory study
dc.type Journal Article
dc.description.version Published
dc.parent Water, Air, and Soil Pollution
dc.journal.volume 1-4
dc.journal.volume 177
dc.journal.number en_US
dc.publocation Netherlands en_US
dc.identifier.startpage 59 en_US
dc.identifier.endpage 80 en_US SCI.Medical and Molecular Biosciences en_US
dc.conference Verified OK en_US
dc.for 0607 Plant Biology
dc.personcode 101663
dc.personcode 890009
dc.personcode 760016
dc.personcode 920074
dc.personcode 000029
dc.percentage 100 en_US Plant Biology en_US
dc.classification.type FOR-08 en_US
dc.description.keywords "Building related illness"
dc.description.keywords "Sick building syndrome"
dc.description.keywords Bioremediation
dc.description.keywords Environmental biotechnology
dc.description.keywords Indoor air pollution
dc.description.keywords m-xylene
dc.description.keywords Phytoremediation
dc.description.keywords Potted-plant
dc.description.keywords Toluene
dc.description.keywords TVOC
dc.description.keywords VOC
pubs.embargo.period Not known
pubs.organisational-group /University of Technology Sydney
pubs.organisational-group /University of Technology Sydney/DVC (Teaching and Learning)
pubs.organisational-group /University of Technology Sydney/Faculty of Science
utslib.copyright.status Closed Access 2015-04-15 12:17:09.805752+10
pubs.consider-herdc true
utslib.collection.history Closed (ID: 3)
utslib.collection.history School of the Environment (ID: 344)
utslib.collection.history School of the Environment (ID: 344)

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