The field comparison of three measuring techniques for evaluation of the surface dust level in ventilation ducts.

abstract：:Analysis of the dust from heating, ventilation, and air conditioning (HVAC) filters is a promising long-term sampling method to characterize airborne particle-bound contaminants. This filter forensics (FF) approach provides valuable insights about differences between buildings, but does not allow for an estimation of ...

journal_title：Indoor air

authors： Givehchi R,Maestre JP,Bi C,Wylie D,Xu Y,Kinney KA,Siegel JA

更新日期：2019-05-01 00:00:00

abstract：:The formaldehyde emission from wood-based building materials is usually determined in large chambers at a defined temperature, humidity and ventilation rate. In this article, a simpler method, the Field and Laboratory Emission Cell (FLEC), is described for determination of the formaldehyde emission and it is compared ...

journal_title：Indoor air

authors： Risholm-Sundman M

更新日期：1999-12-01 00:00:00

abstract：:It is inappropriate to use the assumption of instantaneously well-mixed zones to model airflows and pollutant transport in large indoor spaces. We investigate two approaches for describing the details of airflows in large indoor spaces, for accuracy and suitability for integration with multi-zone infiltration models. ...

journal_title：Indoor air

authors： Mora L,Gadgil AJ,Wurtz E

更新日期：2003-06-01 00:00:00

abstract：:The objectives of this study were (i) to assess the determinants that affect concentrations of the bacterial cell wall components 3-hydroxy fatty acids (3-OH FAs) and muramic acid and of total viable bacteria and actinomycetes in house dust; and (ii) to examine the seasonal variation and reproducibility of these bacte...

journal_title：Indoor air

authors： Leppänen HK,Täubel M,Roponen M,Vepsäläinen A,Rantakokko P,Pekkanen J,Nevalainen A,von Mutius E,Hyvärinen A

更新日期：2015-06-01 00:00:00

abstract：UNLABELLED:In the two decades since the first issue of Indoor Air, there have been over 250 peer-reviewed publications addressing chemical reactions among indoor pollutants. The present review has assembled and categorized these publications. It begins with a brief account of the state of our knowledge in 1991 regardin...

journal_title：Indoor air

authors： Weschler CJ

更新日期：2011-06-01 00:00:00

abstract：:Ultrafine particles are observed when metal surfaces, such as heating elements in electric appliances, or even empty cooking pans, are heated. The source of the particles has not been identified. We present evidence that particles >10 nm are not emitted directly from the heating elements or the metal surfaces. Using r...

journal_title：Indoor air

authors： Wallace LA,Ott WR,Weschler CJ

更新日期：2015-10-01 00:00:00

abstract：:Energy-efficient building refurbishment has the aim of saving energy and thus reducing CO2 emissions. Increased energy efficiency of a building often implies reduced air exchange. Together with other indoor air quality problems, this may lead to an increase in indoor radon concentration (Rn-222). In order to investiga...

journal_title：Indoor air

authors： Meyer W

更新日期：2019-07-01 00:00:00

abstract：:Cross-sectional studies have shown that exposure to indoor moisture damage and mold may be associated with subclinical inflammation. Our aim was to determine whether early age exposure to moisture damage or mold is prospectively associated with subclinical systemic inflammation or with immune responsiveness in later c...

journal_title：Indoor air

authors： Karvonen AM,Tischer C,Kirjavainen PV,Roponen M,Hyvärinen A,Illi S,Mustonen K,Pfefferle PI,Renz H,Remes S,Schaub B,von Mutius E,Pekkanen J

更新日期：2018-05-01 00:00:00

abstract：UNLABELLED:A cross-sectional study was carried out at Tianjin University campus, China, from February 21 to June10, 2006, to survey the association between dampness in dorms and allergy and airways infection among college students. The health and dampness condition were self-reported by 3436 students living in 1511 dor...

journal_title：Indoor air

authors： Sun Y,Zhang Y,Sundell J,Fan Z,Bao L

更新日期：2009-04-01 00:00:00

abstract：UNLABELLED:Moisture accumulation in building structures, the microbial ecology of water-damaged sites and human exposure to biological contaminants are complex phenomena and may result in various types of indoor air pollution and adverse health outcomes. Commonly reported are building-related irritation symptoms, respi...

journal_title：Indoor air

authors： Nevalainen A,Seuri M

更新日期：2005-01-01 00:00:00

abstract：:It has not yet been possible to quantify dose-related health risks attributable to indoor dampness or mold (D/M), to support setting specific health-related limits for D/M. An overlooked target for assessing D/M is moisture in building materials, the critical factor allowing microbial growth. A search for studies of q...

journal_title：Indoor air

authors： Mendell MJ,Macher JM,Kumagai K

更新日期：2018-07-01 00:00:00

abstract：UNLABELLED:A field survey of occupants' response to the indoor environment in 10 office buildings with displacement ventilation was performed. The response of 227 occupants was analyzed. About 24% of the occupants in the survey complained that they were daily bothered by draught, mainly at the lower leg. Vertical air t...

journal_title：Indoor air

authors： Melikov A,Pitchurov G,Naydenov K,Langkilde G

更新日期：2005-06-01 00:00:00

abstract：UNLABELLED:Ventilation performance and pollutant distribution in a traditional ceiling-type ventilation system, a top-return (TR)-type and a floor-return (FR)-type underfloor ventilation systems were performed in a controlled experimental room. Tracer gas method was utilized to determine the age of air and the contamin...

journal_title：Indoor air

authors： Chao CY,Wan MP

更新日期：2004-10-01 00:00:00

abstract：:This study was carried out using various materials (carpet, gypsum board, upholstery, vinyl and wood flooring, acoustic tiles, and fruit) that were exposed to eight gaseous volatile organic compounds (VOCs) (isopropanol, MTBE, cyclohexane, toluene, ethylbenzene, tetrachloroethene, 1,2-dichlorobenzene, and 1,2,4-trichl...

journal_title：Indoor air

authors： Won D,Corsi RL,Rynes M

更新日期：2001-12-01 00:00:00

abstract：UNLABELLED:In this stratified cross-sectional study in eight 'wet' and seven 'dry' schools, 1024 adolescent school children reported potentially building-related symptoms (BRS) in self-administrated questionnaires. From their classrooms dust samples were collected from floors, ventilation ducts, and air; settled dust w...

journal_title：Indoor air

authors： Meyer HW,Würtz H,Suadicani P,Valbjørn O,Sigsgaard T,Gyntelberg F,Members of a Working Group under the Danish Mold in Buildings program (DAMIB).

更新日期：2005-01-01 00:00:00

abstract：:A portion of electronic equipment failures is a consequence of particle deposition on electronic circuits in normal indoor environments. Deposited hygroscopic particles reduce the electrical isolation (EI) between conductors. In laboratory experiments, we investigated the mechanisms, locations, and effects of particle...

journal_title：Indoor air

authors： Litvak A,Gadgil AJ,Fisk WJ

更新日期：2000-03-01 00:00:00

abstract：:The aim of this study was to identify determinants of aldehyde and volatile organic compound (VOC) indoor air concentrations in a sample of more than 140 office rooms, in the framework of the European OFFICAIR research project. A large field campaign was performed, which included (a) the air sampling of aldehydes and ...

journal_title：Indoor air

authors： Spinazzè A,Campagnolo D,Cattaneo A,Urso P,Sakellaris IA,Saraga DE,Mandin C,Canha N,Mabilia R,Perreca E,Mihucz VG,Szigeti T,Ventura G,de Oliveira Fernandes E,de Kluizenaar Y,Cornelissen E,Hänninen O,Carrer P,Wolkoff P

更新日期：2020-01-01 00:00:00

abstract：:Carbon monoxide (CO) alarms are extensively used in domestic premises in the UK to help protect against CO poisoning. Their expected lifetime has been increasing, and some current models now have a replacement period of more than 6 years under normal operation. However, concerns have been expressed as to the reliabili...

journal_title：Indoor air

authors： Naylor S,Walsh PT,Dowker KP

更新日期：2013-08-01 00:00:00

abstract：:Our study conducts a series of investigations in five office buildings chosen according to the types of construction, ventilation, and building age. Formaldehyde was measured by continuous photoacoustic Multi-Gas monitor Type 1302 (Brüel & Kjaer). The 8-h average concentrations in working hours were used to estimate t...

journal_title：Indoor air

authors： Wu PC,Li YY,Lee CC,Chiang CM,Su HJ

更新日期：2003-12-01 00:00:00

abstract：UNLABELLED:This paper presents the experimental and numerical modeling of contaminant dispersion in a full-scale environmental chamber with different room air distribution systems. For the experimental modeling, an area source with uniform emissions of a hypothetical contaminant (SF6) from the entire floor surface is d...

journal_title：Indoor air

authors： He G,Yang X,Srebric J

更新日期：2005-10-01 00:00:00

abstract：:Personal exposure to total volatile organic compounds (TVOCs), benzene and toluene of 100 Milan office workers was assessed through personal air monitoring at home, in the office, and during commuting. Biological monitoring was performed by measuring blood benzene and toluene concentrations together with urinary trans...

journal_title：Indoor air

authors： Carrer P,Maroni M,Alcini D,Cavallo D,Fustinoni S,Lovato L,Visigalli F

更新日期：2000-12-01 00:00:00

abstract：:The accurate quantification of antibiotic-resistant bacteria in indoor air has recently attracted increasing attention. Here, we investigated whether the susceptibility of a nosocomial infection-related microbe, Acinetobacter baumannii, to strong sampling stress caused by Nuclepore filter changes as it develops resist...

journal_title：Indoor air

authors： Tseng CC,Yu PY,Liou JW,Chang KC

更新日期：2018-06-26 00:00:00

abstract：:Dispersion characteristics of expiratory aerosols were investigated in an enclosure with two different idealized airflow patterns: the ceiling-return and the unidirectional downward. A multiphase numerical model, which was able to capture the polydispersity and evaporation features of the aerosols, was adopted. Experi...

journal_title：Indoor air

authors： Chao CY,Wan MP

更新日期：2006-08-01 00:00:00

abstract：UNLABELLED:Nitrogen dioxide (NO2) is produced from the exhausts of vehicles and gas appliances and is known to pose certain health risks. In this study, we characterize the exposure to this substance during the first year of life, which is an important period of development. To this end, we used passive samplers to mea...

journal_title：Indoor air

authors： Esplugues A,Ballester F,Estarlich M,Llop S,Fuentes V,Mantilla E,Iñiguez C

更新日期：2010-06-01 00:00:00

abstract：:The microbial content of air has as yet been little described, despite its public health implications, and there remains a lack of environmental microbial data on airborne microflora in enclosed spaces. In this context, the aim of this study was to characterize the diversity and dynamics of airborne microorganisms in ...

journal_title：Indoor air

authors： Gaüzère C,Moletta-Denat M,Blanquart H,Ferreira S,Moularat S,Godon JJ,Robine E

更新日期：2014-02-01 00:00:00

abstract：:Few measurements of exposure to secondhand smoke (SHS) in close proximity to a smoker are available. Recent health studies have demonstrated an association between acute (<2 h) exposures to high concentrations of SHS and increased risk of cardiovascular and respiratory disease. We performed 15 experiments inside natur...

journal_title：Indoor air

authors： Acevedo-Bolton V,Ott WR,Cheng KC,Jiang RT,Klepeis NE,Hildemann LM

更新日期：2014-04-01 00:00:00

abstract：:The knowledge of exposure to the airborne particle emitted from three-dimensional (3D) printing activities is becoming a crucial issue due to the relevant spreading of such devices in recent years. To this end, a low-cost desktop 3D printer based on fused deposition modeling (FDM) principle was used. Particle number, ...

journal_title：Indoor air

authors： Stabile L,Scungio M,Buonanno G,Arpino F,Ficco G

更新日期：2017-03-01 00:00:00

abstract：UNLABELLED:Early-life exposure to microbial agents may play a protective role in asthma and allergies development. Geographical differences in the prevalence of these diseases exist, but the differences in early-life indoor microbial agent levels and their determinants have been hardly studied. We aimed to describe the...

journal_title：Indoor air

authors： Casas L,Tischer C,Wouters IM,Valkonen M,Gehring U,Doekes G,Torrent M,Pekkanen J,Garcia-Esteban R,Hyvärinen A,Heinrich J,Sunyer J

更新日期：2013-06-01 00:00:00

abstract：UNLABELLED:Continuous emission of unipolar ions has been shown to improve the performance of respirators and stationary filters challenged with non-biological particles. In this study, we investigated the ion-induced enhancement effect while challenging a low-efficiency heating, ventilation and air-conditioning (HVAC) ...

journal_title：Indoor air

authors： Huang R,Agranovski I,Pyankov O,Grinshpun S

更新日期：2008-04-01 00:00:00

abstract：:This paper characterizes the relationship between occupant activities and indoor air particulate levels in a non-smoking office building. Occupant activities were recorded on video. Particulate concentrations were monitored by three optical particle counters (OPCs) in five size ranges at three heights. Particulate mas...

journal_title：Indoor air

authors： Luoma M,Batterman SA

更新日期：2001-03-01 00:00:00