Epidemiology------Comparison between indoor and outdoor air quality at three representative sites in Auckland Center.

 

Liu Huan (2022). Epidemiology------Comparison between indoor and outdoor air quality at three representative sites in Auckland Center. Journal of Environment and Health Science (ISSN 2314-1628). 2022 (12). http://doi.org/10.58473/JEHS0010

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Article 10. Epidemiology------Comparison between indoor and outdoor air quality at three representative sites in Auckland Center

Author: Liu Huan (1983-), Master of Science (First Class Honours, 2009), The University of Auckland. ORCID: https://orcid.org/0000-0003-4881-8509

Advisor: Jennifer Salmond, School of Environment, Faculty of Science, The University of Auckland.

Formally published on 01/12/2022; Latest revised on 09/06/2023.

Abstract

This field study was carried out at three representative locations in Auckland Center, including Starship Hospital, Shopping Mall, and Food Town. Both indoor and outdoor values of carbon monoxide, carbon dioxide, temperature and humidity were collected at each sampling site. The relation between indoor and outdoor air pollutant concentrations was analyzed in this study. A high correlation (R: 0.8424, P<0.01) was found between Roadside CO and Shopping Mall CO without significant difference between them (P>0.05). However, in Food Town where there was an additional combustion emission source inside, the average concentration of indoor carbon monoxide was 47.86% higher than Roadside level. Both indoor and outdoor CO concentrations in Starship Hospital were significantly lower (P<0.01) than Food Town and Shopping Mall levels. At all locations, the indoor carbon dioxide concentrations were significantly (P<0.05) higher than outdoor values, which was perhaps caused by higher occupant density inside. Epidemiology, which studies the causal factors of public health or epidemic disease, mainly includes the transmission pattern and mechanism of causal factors and its impacts on the defined receptors. It is undoubted that indoor exposure assessment becomes an essential part of the epidemiology study of airborne pollutants, which can be measured by the personal exposure monitoring. Additionally, relation between microenvironment monitoring and modeling methods for indoor exposure assessment has also been discussed in this study. Overall, Starship Hospital represented the effective design in terms of its ideal location, filtering function of ventilation system, and sufficiently indoor volume, which led to the most satisfactory air quality among all the sampling sites in this study.

Keywords: indoor air quality, carbon monoxide, carbon dioxide, exposure assessment，epidemiology

病理传播学----奥克兰市中心三个代表性监测点的室内和室外大气污染值比较研究（英文）

摘要：这项课题的大气污染监测点选择在奥克兰市中心的三个代表性地点，分别是医院、购物中心、美食城。每个采样点的监测数据包括室内和室外的一氧化碳、二氧化碳、温度和相对湿度值。课题研究了室内和室外空气污染物浓度之间的关系。路边室外CO浓度值与购物中心室内的浓度值之间呈现了很高的正相关性（R：0.8424，P＜0.01），并且二者的平均值之间没有显著差异（P＞0.05）。相比而言，在美食城有一个额外的室内燃烧排放源，使得室内一氧化碳浓度平均值高于路边室外47.86%。在医院，室内和室外CO浓度明显（P＜0.01）低于美食城和购物中心的水平。在所有监测地点，室内二氧化碳浓度显著（P＜0.05）高于室外值，这可能是由高密度的人群造成的。病理传播学，主要研究对危害公共健康或爆发传染性疾病的致病因子在传播途径上的规律和机理，及其对特定受众的危害。室内人群大气污染暴露值评估成为病理传播学研究的一个重要组成部分，一般可以由便携式监测仪器测量。此外，室内微观大气环境监测和模型预测方法之间的关系也在课题中进行了探讨。总体上，医院位置代表了较为理想的工程设计，主要体现为良好的通风系统过滤功能和足够的室内体积，其中各项空气指标在三个采样地点是最为满意的。

关键词：室内空气污染监测、大气污染暴露值、一氧化碳、二氧化碳、病理传播学