DOI: 10.1016/j.atmosenv.2015.08.044
Scopus记录号: 2-s2.0-84942024472
论文题名: Real-time indoor and outdoor measurements of black carbon at primary schools
作者: Reche C ; , Rivas I ; , Pandolfi M ; , Viana M ; , Bouso L ; , Àlvarez-Pedrerol M ; , Alastuey A ; , Sunyer J ; , Querol X
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 120 起始页码: 417
结束页码: 426
语种: 英语
英文关键词: Airtightness
; Children's exposure
; Infiltration
; Traffic rush-hour
Scopus关键词: Air quality
; Amphibious vehicles
; Balloons
; Health hazards
; Health risks
; Infiltration
; Motor transportation
; Roads and streets
; Societies and institutions
; Transportation
; Airtightness
; Children's exposure
; Indoor and outdoor airs
; Indoor/outdoor ratios
; Outdoor concentrations
; Outdoor measurements
; Road traffic emissions
; Simultaneous measurement
; Teaching
; black carbon
; air quality
; atmospheric pollution
; black carbon
; child health
; diurnal variation
; epidemiology
; health risk
; indoor air
; infiltration
; public health
; real time
; road traffic
; toxicology
; traffic emission
; vulnerability
; Article
; environmental exposure
; human
; measurement
; primary school
; priority journal
; Spain
; surface area
; temperature
; weather
; Barcelona [Catalonia]
; Catalonia
; Spain
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: Epidemiological and toxicological studies have demonstrated the association between Black Carbon in indoor and outdoor air and the occurrence of health risks. Data on air quality in schools is of special interest, as children are more vulnerable to health hazards. In this context, indoor and outdoor measurements of real-time Equivalent Black Carbon (EBC) were collected at 39 primary schools located in Barcelona (Spain), with classrooms naturally ventilated under warm weather conditions. A main contribution of road traffic emissions to indoor and outdoor EBC levels was evidenced through different approaches. Simultaneous measurements of EBC levels at schools under different traffic conditions revealed concentrations by 30-35% higher at schools exposed to higher vehicles intensities. Moreover, a significant correlation was obtained between average outdoor EBC levels at different districts of the city and the percentage of surface area in each district used for the road network (R2 = 0.61). Higher indoor than outdoor levels were recorded at some instances when the indoor sampling location was relatively closer to road traffic, even under low outdoor temperatures. Indeed, the average indoor/outdoor EBC ratios for each school correlate moderately between campaigns in spite of significant differences in temperature between sampling periods. These two facts highlight the strong dependency of the EBC levels on the distance to traffic. The peaks of exposure inside the classrooms seemed to be determined by outdoor concentrations, as shown by the parallelism between indoor and outdoor mean EBC daily cycles and the similar contribution of traffic rush hours to indoor and outdoor daily mean levels. The airtightness of the classroom was suggested as the responsible for the indoor/outdoor ratios of EBC higher than 1 recorded at nights. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81488
Appears in Collections: 气候变化事实与影响
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作者单位: Institute for Environmental Assessment and Water Research (IDÆA-CSIC), Barcelona, Spain; Centre for Research in Environmental Epidemiology (CREAL), Barcelona, Spain; Hospital del Mar Research Institute (IMIM), Barcelona, Spain; Universitat Pompeu Fabra (UPF), Barcelona, Spain; CIBER Epidemiología y Salud Pública (CIBERESP), Spain; Institut de Ciencia i Tecnologia Ambientals, Universitat Autonoma de Barcelona (UAB), Bellaterra, Cerdanyola, Spain
Recommended Citation:
Reche C,, Rivas I,, Pandolfi M,et al. Real-time indoor and outdoor measurements of black carbon at primary schools[J]. Atmospheric Environment,2015-01-01,120