Daily indoor-to-outdoor temperature and humidity relationships: a sample across seasons and diverse climatic regions

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• 作者：Jennifer L. Nguyen ; Douglas W. Dockery
• 关键词：Humidity ; Indoor ; Outdoor ; Temperature ; Weather
• 刊名：International Journal of Biometeorology
• 出版年：2016
• 出版时间：February 2016
• 年：2016
• 卷：60
• 期：2
• 页码：221-229
• 全文大小：772 KB
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• 作者单位：Jennifer L. Nguyen (1)
  Douglas W. Dockery (2)
  
  1. Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, 722 W. 168th St, New York, NY, 10032, USA
  2. Department of Environmental Health, Department of Epidemiology, Harvard T.H. Chan School of Public Health, 665 Huntington Avenue, Boston, MA, 02215, USA
  
• 刊物类别：Earth and Environmental Science
• 刊物主题：Life Sciences
  Animal Physiology
  Plant Physiology
  Environmental Medicine/Environmental Psychology
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1432-1254

文摘

The health consequences of heat and cold are usually evaluated based on associations with outdoor measurements collected at a nearby weather reporting station. However, people in the developed world spend little time outdoors, especially during extreme temperature events. We examined the association between indoor and outdoor temperature and humidity in a range of climates. We measured indoor temperature, apparent temperature, relative humidity, dew point, and specific humidity (a measure of moisture content in air) for one calendar year (2012) in a convenience sample of eight diverse locations ranging from the equatorial region (10 °N) to the Arctic (64 °N). We then compared the indoor conditions to outdoor values recorded at the nearest airport weather station. We found that the shape of the indoor-to-outdoor temperature and humidity relationships varied across seasons and locations. Indoor temperatures showed little variation across season and location. There was large variation in indoor relative humidity between seasons and between locations which was independent of outdoor airport measurements. On the other hand, indoor specific humidity, and to a lesser extent dew point, tracked with outdoor, airport measurements both seasonally and between climates, across a wide range of outdoor temperatures. These results suggest that, in general, outdoor measures of actual moisture content in air better capture indoor conditions than outdoor temperature and relative humidity. Therefore, in studies where water vapor is among the parameters of interest for examining weather-related health effects, outdoor measurements of actual moisture content can be more reliably used as a proxy for indoor exposure than the more commonly examined variables of temperature and relative humidity. Keywords Humidity Indoor Outdoor Temperature Weather