DOI: 10.1016/j.atmosenv.2014.04.025
Scopus记录号: 2-s2.0-84899570984
论文题名: Predictors of coarse particulate matter and associated endotoxin concentrations in residential environments
作者: Bari M ; A ; , MacNeill M ; , Kindzierski W ; B ; , Wallace L ; , Héroux M ; -T ; , Wheeler A ; J
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 92 起始页码: 221
结束页码: 230
语种: 英语
英文关键词: Coarse particulate matter
; Endotoxin
; Indoor air quality
; Predictors
Scopus关键词: Indoor air pollution
; Coarse particulate matter
; Endotoxin
; High-efficiency particulate air filters
; Housing characteristic
; Indoor air quality
; Outdoor concentrations
; Predictors
; Residential environment
; Houses
; endotoxin
; air quality
; allergy
; asthma
; canid
; concentration (composition)
; dust
; filter
; health impact
; indoor air
; pollution exposure
; relative humidity
; residential development
; rodent
; smoking
; toxin
; ventilation
; air
; air conditioning
; article
; concentration (parameters)
; dog
; environmental exposure
; environmental temperature
; gas exchange
; housing
; humidity
; limit of detection
; meteorology
; neighborhood
; odor
; particulate matter
; priority journal
; residential area
; residential home
; summer
; vacuum
; winter
; Alberta
; Canada
; Edmonton
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: Exposure to coarse particulate matter (PM), i.e., particles with an aerodynamic diameter between 2.5 and 10μm (PM10-2.5), is of increasing interest due to the potential for health effects including asthma, allergy and respiratory symptoms. Limited information is available on indoor and outdoor coarse PM and associated endotoxin exposures. Seven consecutive 24-h samples of indoor and outdoor coarse PM were collected during winter and summer 2010 using Harvard Coarse Impactors in a total of 74 Edmonton homes where no reported smoking took place. Coarse PM filters were subsequently analyzed for endotoxin content. Data were also collected on indoor and outdoor temperature, relative humidity, air exchange rate, housing characteristics and occupants' activities. During winter, outdoor concentrations of coarse PM (median=6.7μg/m3, interquartile range, IQR=3.4-12μg/m3) were found to be higher than indoor concentrations (median 3.4μg/m3, IQR=1.6-5.7μg/m3); while summer levels of indoor and outdoor concentrations were similar (median 4.5μg/m3, IQR=2.3-6.8μg/m3, and median 4.7μg/m3, IQR=2.1-7.9μg/m3, respectively). Similar predictors were identified for indoor coarse PM in both seasons and included corresponding outdoor coarse PM concentrations, whether vacuuming, sweeping or dusting was performed during the sampling period, and number of occupants in the home. Winter indoor coarse PM predictors also included the number of dogs and indoor endotoxin concentrations. Summer median endotoxin concentrations (indoor: 0.41EU/m3, outdoor: 0.64EU/m3) were 4-fold higher than winter concentrations (indoor: 0.12EU/m3, outdoor: 0.16EU/m3). Other than outdoor endotoxin concentrations, indoor endotoxin concentration predictors for both seasons were different. Winter endotoxin predictors also included presence of furry pets and whether the vacuum had a high efficiency particulate air (HEPA) filter. Summer endotoxin predictors were problems with mice in the previous 12 months and mean indoor relative humidity levels. © 2014 Elsevier Ltd.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81133
Appears in Collections: 气候变化事实与影响
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作者单位: School of Public Health, University of Alberta, 3-57 South Academic Building, 11405-87 Avenue, Edmonton, Alberta T6G 1C9, Canada; Health Canada, 269 Laurier Avenue West, Ottawa, Ontario K1A 0K9, Canada; Consultant, 428 Woodley Way, Santa Rosa, California 95409, United States; WHO European Centre for Environment and Health, Bonn, Germany; Centre for Ecosystem Management, School of Natural Sciences, Edith Cowan University, 270 Joondalup Drive, Joondalup, WA 6027, Australia
Recommended Citation:
Bari M,A,, MacNeill M,et al. Predictors of coarse particulate matter and associated endotoxin concentrations in residential environments[J]. Atmospheric Environment,2014-01-01,92