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Comparison of environmental and acoustic factors in occupied school classrooms for 11e16 year old students

Mydlarz, CA, Conetta, R, Connolly, D, Cox, TJ, Dockrell, DJ and Shield, BM 2013, 'Comparison of environmental and acoustic factors in occupied school classrooms for 11e16 year old students' , Building and Environment, 60 , pp. 265-271.

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Abstract

This paper analyses and compares environmental and acoustic measurements taken from 12 contrasting schools in England. The 203 classrooms measured ranged in age, style (open plan, semi-open plan and cellular) and external noise levels. The occupied environmental measures were: CO2 count, relative humidity, temperature and light intensity. The occupied acoustic measures taken were: LAeq, L1, L10 and L90. In addition, ventilation strategy, room dimensions and student numbers were also recorded. Lesson averages were compared to remove fluctuations observed in some parameters during lessons. Large variations in CO2 levels were observed between schools with 39% exceeding recommended guidelines. Lighting levels were predominantly below the recommended level required for demanding tasks. Classrooms with mechanical ventilation had higher background noise levels than those using natural ventilation. Most environmental parameters were uncorrelated with acoustic parameters. A notable exception was the correlation between LAeq and CO2 count; due to the relationships between these parameters, number of students and classroom floor area. A regression model was produced predicting a doubling in LAeq, with a 67% increase in student numbers.

Item Type: Article
Themes: Built and Human Environment
Schools: Schools > School of Computing, Science and Engineering > Salford Innovation Research Centre (SIRC)
Journal or Publication Title: Building and Environment
Publisher: Elsevier
Refereed: Yes
ISSN: 0360-1323
Related URLs:
Funders: Engineering and Physical Sciences Research Council (EPSRC)
Depositing User: TJ Cox
Date Deposited: 22 Oct 2014 15:49
Last Modified: 29 Oct 2015 00:23
URI: http://usir.salford.ac.uk/id/eprint/32953

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