Human convection flow in spaces with and without ventilation: personal exposure to floor-released particles and cough-released droplets.

abstract：UNLABELLED:In this paper, a method is developed to assess the performance of adsorptive building materials that are used for reducing indoor pollutant concentrations. Mass transfer has a great influence on the materials' performance. To control the mass transfer rate precisely in the performance test, the authors have ...

journal_title：Indoor air

authors： Ataka Y,Kato S,Murakami S,Zhu Q,Ito K,Yokota T

更新日期：2004-01-01 00:00:00

abstract：:Thermal stratification is established when warmer air rises and cooler air descends under thermal buoyancy. It occurs in indoor environment situations including large warehouse-type buildings, buoyancy-driven ventilated spaces with displacement, underfloor ventilation, and/or natural ventilation, and enclosure fires w...

journal_title：Indoor air

authors： Wang LL,Zhang X,Qi D

更新日期：2019-03-01 00:00:00

abstract：UNLABELLED:In this study, single-particle characterization of aerosol particles collected at an underground shopping area was performed for the first time. A quantitative single-particle analytical technique, low-Z particle electron probe X-ray microanalysis, was used to characterize a total of 7900 individual particle...

journal_title：Indoor air

authors： Maskey S,Kang T,Jung HJ,Ro CU

更新日期：2011-02-01 00:00:00

abstract：:We investigated the physicochemical properties (size, shape, elemental composition, and endotoxin) of size resolved particulate matter (PM) collected from the indoor and corridor environments of classrooms. A comparative hazard profiling of these PM was conducted using human microvascular endothelial cells (HMVEC). Ox...

journal_title：Indoor air

authors： Chua ML,Setyawati MI,Li H,Fang CHY,Gurusamy S,Teoh FTL,Leong DT,George S

更新日期：2017-05-01 00:00:00

abstract：:This paper reports the comparison of three measuring methods for quantifying the amount of dust on the inner surface of ventilation ducts: 1) a vacuum test method; 2) a gravimetric tape method; and 3) an optical method. Thirteen recently constructed buildings were selected for the field test in the Helsinki metropolit...

journal_title：Indoor air

authors： Holopainen R,Asikainen V,Pasanen P,Seppänen O

更新日期：2002-03-01 00:00:00

abstract：UNLABELLED:Indoor air quality (IAQ) has been a matter of public concern these days whereas air pollution is normally monitored outdoors as part of obligations under the National air quality strategies. Much little is known about levels of air pollution indoors. Simultaneous measurements of indoor and outdoor carbon mon...

journal_title：Indoor air

authors： Lawrence AJ,Masih A,Taneja A

更新日期：2005-04-01 00:00:00

abstract：UNLABELLED:Electronic cigarette consumption ('vaping') is marketed as an alternative to conventional tobacco smoking. Technically, a mixture of chemicals containing carrier liquids, flavors, and optionally nicotine is vaporized and inhaled. The present study aims at the determination of the release of volatile organic ...

journal_title：Indoor air

authors： Schripp T,Markewitz D,Uhde E,Salthammer T

更新日期：2013-02-01 00:00:00

abstract：:Field measurements were collected through physical measurements and observations in the cities of Seoul, Korea; Eugene and Portland, Oregon; and Yokohama, Japan, during the fall, winter, and summer seasons from 2005 to 2006. A total of 1733 data sets were collected (Seoul - 713; Oregon - 807; Yokohama - 213) in variet...

journal_title：Indoor air

authors： Kim H,Chun C,Kwok A,Ota A,Tamura A

更新日期：2011-08-01 00:00:00

abstract：:As a basis for determining the lower limit of acceptable humidity in an indoor environment, experiments were conducted for 25 subjects to assess the maximum expected sensations of dryness, discomfort based on humidity, and intolerance based on humidity, under conditions of 26°C and 10% RH. As results, distinct negativ...

journal_title：Indoor air

authors： Takada S

更新日期：2021-01-01 00:00:00

abstract：:The indoor environmental quality in classrooms can largely affect children's daily exposure to indoor chemicals in schools. To date, there has not been a comprehensive study of the concentrations of semivolatile organic compounds (SVOCs) in French schools. Therefore, the French Observatory for Indoor Air Quality (OQAI...

journal_title：Indoor air

authors： Wei W,Dassonville C,Sivanantham S,Gregoire A,Mercier F,Le Bot B,Malingre L,Ramalho O,Derbez M,Mandin C

更新日期：2021-01-01 00:00:00

abstract：:Despite evidence that airborne transmission contributes to influenza epidemics, limited knowledge of the infectiousness of human influenza cases hinders pandemic preparedness. We used airborne viral source strength and indoor CO2 monitoring from the largest human influenza challenge-transmission trial (EMIT: Evaluatin...

journal_title：Indoor air

authors： Bueno de Mesquita PJ,Noakes CJ,Milton DK

更新日期：2020-11-01 00:00:00

abstract：:Airborne ultrafine particles (UFP) have been related to adverse health effects, but exposure in vulnerable population groups such as children is still not well understood. We aim to review the scientific literature regarding personal exposure to UFP in different microenvironments in populations until 18 years of age. ...

journal_title：Indoor air

authors： García-Hernández C,Ferrero A,Estarlich M,Ballester F

更新日期：2020-01-01 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：:Reactive oxygen species (ROS) are an important contributor to adverse health effects associated with ambient air pollution. Despite infiltration of ROS from outdoors, and possible indoor sources (eg, combustion), there are limited data available on indoor ROS. In this study, part of the second phase of Air Composition...

journal_title：Indoor air

authors： Eftekhari A,Fortenberry CF,Williams BJ,Walker MJ,Dang A,Pfaff A,Ercal N,Morrison GC

更新日期：2021-01-23 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：: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:A comparison study of novel collection methods for airborne bacteria and endotoxin was performed in an environmentally controlled chamber and in pilot-field studies. Airborne particulate matter was collected in swirling liquid impingers, air-monitoring filter cassettes, and with a micro-orifice uniform depos...

journal_title：Indoor air

authors： Kujundzic E,Hernandez M,Miller SL

更新日期：2006-06-01 00:00:00

abstract：:This study aimed to measure in French children personal exposure concentrations of black carbon (BC) and ultrafine particles (UFP) and to quantify the contribution of different microenvironments (home, school, places of extracurricular activities, transport) to their total exposure. It was conducted on 96 9-year-old c...

journal_title：Indoor air

authors： Paunescu AC,Attoui M,Bouallala S,Sunyer J,Momas I

更新日期：2017-07-01 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:In case contaminants are found in enclosed environments such as aircraft cabins or buildings, it is useful to find the contaminant sources. One method to locate contaminant sources is by inverse computational fluid dynamics (CFD) modeling. As the inverse CFD modeling is ill posed, this paper has proposed to ...

journal_title：Indoor air

authors： Zhang TF,Chen Q

更新日期：2007-06-01 00:00:00

abstract：:This study assessed the collection efficiency (CE) of two popularly used sampling devices (BioSampler and Coriolis sampler) for fungal aerosols. Phosphate-buffered saline (PBS) supplemented with or without surfactant (Tween-20, Tween-80, or Triton X-100) and antifoam agent was prepared and used as collection liquids. ...

journal_title：Indoor air

authors： Chang CW,Ting YT,Horng YJ

更新日期：2019-05-01 00:00:00

abstract：:To investigate indoor environmental quality in classrooms, assessments were undertaken in a 'low allergen' school and three standard primary schools in Western Australia. Dust allergens, air pollutants and physical parameters were monitored in the four schools at four times (summer school term, autumn holiday, winter ...

journal_title：Indoor air

authors： Zhang G,Spickett J,Rumchev K,Lee AH,Stick S

更新日期：2006-02-01 00:00:00

abstract：:The inhalation of (222) Rn (radon) decay products is one of the most important reasons for lung cancer after smoking. Stony building materials are an important source of indoor radon. This article describes the determination of the exhalation rate of stony construction materials by the use of commercially available me...

journal_title：Indoor air

authors： Richter M,Jann O,Kemski J,Schneider U,Krocker C,Hoffmann B

更新日期：2013-10-01 00:00:00

abstract：:Associations between size-fractionated indoor particulate matter (PM) and black carbon (BC) and heart rate variability (HRV) and heart rate (HR) in elderly women remain unclear. Twenty-nine healthy elderly women were measured for 24-hour HRV/HR indices. Real-time size-fractionated indoor PM and BC were monitored on th...

journal_title：Indoor air

authors： Dong W,Pan L,Li H,Miller MR,Loh M,Wu S,Xu J,Yang X,Shan J,Chen Y,Deng F,Guo X

更新日期：2018-05-01 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:When considering how people are infected and what can be done to prevent the infections, answers from many disciplines are sought: microbiology, epidemiology, medicine, engineering, and physics. There are many pathways to infection spread, and among the most significant from the epidemiological point of view...

journal_title：Indoor air

authors： Morawska L

更新日期：2006-10-01 00:00:00

abstract：UNLABELLED:Acute lower respiratory illnesses (ALRI) are the leading cause of death among children <5 years. Studies have found that biomass cooking fuels are an important risk factor for ALRI. However, few studies have evaluated the influence of natural household ventilation indicators on ALRI. The purpose of this stud...

journal_title：Indoor air

authors： Murray EL,Brondi L,Kleinbaum D,McGowan JE,Van Mels C,Brooks WA,Goswami D,Ryan PB,Klein M,Bridges CB

更新日期：2012-04-01 00:00:00

abstract：UNLABELLED:The aim was to investigate the association between building-related symptoms (BRS) in office buildings and the inflammatory potency of dust (PD). Furthermore, the association between dust potency and various building characteristics was investigated. Occupants of 22 office buildings received a retrospective ...

journal_title：Indoor air

authors： Allermann L,Pejtersen J,Gunnarsen L,Poulsen OM

更新日期：2007-12-01 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