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Feasibility study of a simple IAQ index for assessing air-conditioned offices

机译：简单的室内空气质素指数评估空调办公室的可行性研究

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Purpose - It is costly to sample all air pollutants of a general community for continuous indoor air quality (IAQ) assessments. To optimize the resources for IAQ baseline monitoring for general facilities management, this study aims to investigate the feasibility of using a simple IAQ index as a screening parameter of a screening test to identify an asymptomatic air-conditioned office with probable unsatisfactory IAQ. Design/methodology/approach - The IAQ index is determined from the fractional dose of some representative common indoor air pollutants of unsatisfactory IAQ, either by taking equal importance of the pollutants as a weighting factor or weighted by the regional failure rates with respect to the corresponding air pollutants. Specifically, a database of regional IAQ assessment results of 422 air-conditioned offices was employed to justify the selected screening levels for the IAQ index. Findings - The proposed IAQ index of a screening assessment was used for verifying, respectively, 58 and seven air-conditioned offices of Hong Kong with satisfactory and unsatisfactory IAQ. The results showed that 57 satisfactory offices and two unsatisfactory offices were correctly identified by the unweighted and weighted IAQ indices respectively. Evaluation of the proposed index in further IAQ improvements of some offices showed that it would be a practical tool for preliminary IAQ screening assessment. Research limitations/implications - The screening test itself could not identify all the IAQ problems but could identify the office groups with higher risk of unsatisfactory IAQ with reduced effort. Practical implications - The study shows the usefulness of the proposed IAQ index to identify the unrecognized IAQ problems for air-conditioned office environments. It could be adopted as a routine screening measure in facility management of which a wide-ranging set of IAQ measurement is undesired. Originality/value - This study presents a useful reference for policymakers, building owners and professionals for indoor environmental assessments.
机译：目的-对整个社区的所有空气污染物进行连续室内空气质量（IAQ）评估的成本很高。为了优化用于一般设施管理的IAQ基线监视的资源，本研究旨在调查使用简单的IAQ指标作为筛查测试的筛查参数来确定可能没有令人满意的IAQ的无症状空调办公室的可行性。设计/方法/方法-IAQ指数是由IAQ不能令人满意的一些代表性常见室内空气污染物的分数剂量确定的，方法是将污染物同等重要作为加权因子，或者通过将区域失效率相对于相应的污染物加权空气污染物。具体来说，使用了422个空调办公室的区域IAQ评估结果数据库来证明为IAQ指数选择的筛选水平是合理的。调查结果-拟议的室内评估空气质量指数用于分别验证香港有58个和七个空调办公室的空气质量指数令人满意和不满意。结果表明，分别通过未加权和加权IAQ指数可以正确识别57个满意的办公室和两个不满意的办公室。对一些办事处的室内空气质量进一步改善中拟议指标的评估表明，这将是进行室内空气质量初步筛选评估的实用工具。研究的局限性/意义-筛查测试本身不能识别出所有的IAQ问题，但可以通过减少工作量来识别具有不满意的IAQ风险的较高的办公室。实际意义-该研究表明，建议的IAQ指数对于识别空调办公室环境中无法识别的IAQ问题很有用。可以将其用作设施管理中的常规筛选措施，而该措施不希望用于一系列广泛的IAQ测量。原创性/价值-这项研究为决策者，建筑业主和专业人员进行室内环境评估提供了有用的参考。

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