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DOI | 10.1111/ina.12176 |
The effects of building-related factors on classroom relative humidity among North Carolina schools participating in the "Free to Breathe, Free to Teach' study | |
Angelon-Gaetz, K. A.1; Richardson, D. B.1; Lipton, D. M.2; Marshall, S. W.1; Lamb, B.3; LoFrese, T.4 | |
发表日期 | 2015-12-01 |
ISSN | 0905-6947 |
卷号 | 25期号:6页码:620-630 |
英文摘要 | Both high and low indoor relative humidity (RH) directly impact Indoor Air Quality (IAQ), an important school health concern. Prior school studies reported a high prevalence of mold, roaches, and water damage; however, few examined associations between modifiable classroom factors and RH, a quantitative indicator of dampness. We recorded RH longitudinally in 134 North Carolina classrooms (n=9066 classroom-days) to quantify the relationships between modifiable classroom factors and average daily RH below, within, or above levels recommended to improve school IAQ (30-50% or 30-60% RH). The odds of having high RH (>60%) were 5.8 [95% Confidence Interval (CI): 2.9, 11.3] times higher in classrooms with annual compared to quarterly heating, ventilating, and air-conditioning (HVAC) system maintenance and 2.5 (95% CI: 1.5, 4.2) times higher in classrooms with HVAC economizers compared to those without economizers. Classrooms with direct-expansion split systems compared to chilled water systems had 2.7 (95% CI: 1.7, 4.4) times higher odds of low RH (<30%). When unoccupied, classrooms with thermostat setbacks had 3.7 (95% CI: 1.7, 8.3) times the odds of high RH (>60%) of those without setbacks. This research suggests actionable decision points for school design and maintenance to prevent high or low classroom RH. |
英文关键词 | Indoor air quality;Relative humidity;Schools;Classrooms;Building-related factors;Longitudinal study |
语种 | 英语 |
WOS记录号 | WOS:000364703700006 |
来源期刊 | INDOOR AIR |
来源机构 | 美国环保署 |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/60940 |
作者单位 | 1.Univ N Carolina, Dept Epidemiol, Gillings Sch Global Publ Hlth, Chapel Hill, NC USA; 2.Dept Hlth & Human Serv, North Carolina Div Publ Hlth, Raleigh, NC USA; 3.New Hanover Cty Sch, Maintenance Operat Dept, Wilmington, NC USA; 4.Chapel Hill Carrboro City Sch, Support Serv, Chapel Hill, NC USA |
推荐引用方式 GB/T 7714 | Angelon-Gaetz, K. A.,Richardson, D. B.,Lipton, D. M.,et al. The effects of building-related factors on classroom relative humidity among North Carolina schools participating in the "Free to Breathe, Free to Teach' study[J]. 美国环保署,2015,25(6):620-630. |
APA | Angelon-Gaetz, K. A.,Richardson, D. B.,Lipton, D. M.,Marshall, S. W.,Lamb, B.,&LoFrese, T..(2015).The effects of building-related factors on classroom relative humidity among North Carolina schools participating in the "Free to Breathe, Free to Teach' study.INDOOR AIR,25(6),620-630. |
MLA | Angelon-Gaetz, K. A.,et al."The effects of building-related factors on classroom relative humidity among North Carolina schools participating in the "Free to Breathe, Free to Teach' study".INDOOR AIR 25.6(2015):620-630. |
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