Indoor Air Quality in Naturally Ventilated Italian Classrooms

被引：51
作者：
Fuoco, Fernanda Carmen [1 ]
Stabile, Luca [1 ]
Buonanno, Giorgio [1 ,2 ]
Trassiera, Concepcion Vargas [1 ]
Massimo, Angelamaria [1 ]
Russi, Aldo [1 ]
Mazaheri, Mandana [2 ]
Morawska, Lidia [2 ]
Andrade, Alexandro [3 ]
机构：
[1] Univ Cassino & Southern Lazio, Dept Civil & Mech Engn, I-03043 Cassino, FR, Italy
[2] Queensland Univ Technol, Int Lab Air Qual & Hlth, Brisbane, Qld 4001, Australia
[3] Santa Catarina State Univ, Ctr Hlth Sci & Sport, BR-88080350 Florianopolis, SC, Brazil
来源：
ATMOSPHERE | 2015年 / 6卷 / 11期
关键词：
classroom; N-i; N-out ratio; airing by opening windows; particle number concentration; LONG-TERM EXPOSURE; PARTICULATE MATTER; ULTRAFINE PARTICLES; INDOOR/OUTDOOR RELATIONSHIPS; SCHOOL CLASSROOMS; ROADSIDE ENVIRONMENT; AIRBORNE PARTICLES; COARSE PARTICLES; CARBON-DIOXIDE; BLACK CARBON;
D O I：
10.3390/atmos6111652
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Characterization of indoor air quality in school classrooms is crucial to children's health and performance. The present study was undertaken to characterize the indoor air quality in six naturally ventilated classrooms of three schools in Cassino (Italy). Indoor particle number, mass, black carbon, CO2 and radon concentrations, as well as outdoor particle number were measured within school hours during the winter and spring season. The study found the concentrations of indoor particle number were influenced by the concentrations in the outdoors; highest BC values were detected in classrooms during peak traffic time. The effect of different seasons' airing mode on the indoor air quality was also detected. The ratio between indoor and outdoor particles was of 0.85 +/- 0.10 in winter, under airing conditions of short opening window periods, and 1.00 +/- 0.15 in spring when the windows were opened for longer periods. This was associated to a higher degree of penetration of outdoor particles due to longer period of window opening. Lower CO2 levels were found in classrooms in spring (908ppm) than in winter (2206ppm). Additionally, a greater reduction in radon concentrations was found in spring. In addition, high PM10 levels were found in classrooms during break time due to re-suspension of coarse particles.
引用
收藏
页码：1652 / 1675
页数：24
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