研究报告
姚霞,吝涛,周昊,孙守恺,李方芳,张浚茂,陈媛,张国钦,叶红.基于物联网长期在线监测的办公建筑室内外环境质量变化特征研究[J].环境科学学报,2022,42(7):123-139
基于物联网长期在线监测的办公建筑室内外环境质量变化特征研究
- Research on the dynamic characteristics of indoor and outdoor environmental quality of office buildings based on long-term online monitoring of Internet of Things
- 基金项目:中国科学院战略性先导科技专项(A类)(No.XDA23030104);中国科学院国际伙伴计划项目(No. 132C35KYSB20200007)
- 姚霞
- 中国科学院城市环境研究所/城市环境与健康重点实验室,厦门 361021;中国科学院大学,北京 100049
- 吝涛
- 中国科学院城市环境研究所/城市环境与健康重点实验室,厦门 361021
- 周昊
- 生态环境部南京环境科学研究所,南京 210042
- 孙守恺
- 瑞士热带与公共卫生研究所,巴塞尔4051;巴塞尔大学,巴塞尔4051
- 李方芳
- 中国科学院城市环境研究所/城市环境与健康重点实验室,厦门 361021
- 张浚茂
- 中国科学院城市环境研究所/城市环境与健康重点实验室,厦门 361021;中国科学院大学,北京 100049
- 陈媛
- 中国科学院城市环境研究所/城市环境与健康重点实验室,厦门 361021
- 张国钦
- 中国科学院城市环境研究所/城市环境与健康重点实验室,厦门 361021
- 叶红
- 中国科学院城市环境研究所/城市环境与健康重点实验室,厦门 361021
- 摘要:为了解办公建筑室内外环境质量的变化特征,运用物联网技术,搭建室内外环境质量监测系统,对福建省厦门市某一办公建筑进行为期一年的连续监测,分析不同楼层办公室(6楼、9楼和15楼)室内外的温度、湿度、光照强度、甲醛、TVOC、CO2以及PM2.5在不同时间尺度下的污染情况与变化特征.结果表明:①在逐日变化尺度上,不同楼层办公室室内外温度和湿度都呈现先上升后下降的趋势,光照强度呈现先下降后上升的趋势,PM2.5呈现逐渐下降的趋势,而不同楼层办公室室内外的甲醛、TVOC和CO2的浓度随楼层高度升高而逐渐降低;②在季节尺度上,不同楼层办公室室内外温度的变化趋势为夏季>秋季>春季>冬季,室内湿度呈现夏季>春季>秋季>冬季的规律,室内PM2.5的变化规律为冬季>春季>秋季>夏季,而室外湿度、室外PM2.5以及不同楼层办公室室内外的光照强度、甲醛、TVOC和CO2与季节交替的关系不大;③不同楼层办公室的室内外环境质量在工作日和周末未呈现明显的差异;④日变化尺度上,除PM2.5以外,不同楼层办公室室内外温度、湿度、光照强度、甲醛、TVOC和CO2都有明显的变化趋势,其中,甲醛、TVOC和CO2的浓度随楼层高度的升高而降低,且各环境质量因子室内和室外的变化趋势存在滞后效应.
- Abstract:In order to recognize the dynamic characteristics of indoor and outdoor environmental quality of office buildings, this paper utilizes Internet of Things technology to build an indoor and outdoor environmental quality monitoring system to continuously monitor an office building in Xiamen, Fujian Province for one year, and analyzes the pollution and variation characteristics of temperature, humidity, illumination, formaldehyde, TVOC, CO2 and PM2.5 in different floors of 6th, 9th, and 15th at different time scales. The results show that: ① for the daily variation, the indoor and outdoor temperature and humidity of offices at different floors show a trend of first increasing and then decreasing. In contrast, illumination shows a trend of first decreasing and then increasing. PM2.5 shows a gradual downward trend. The concentrations of formaldehyde, TVOC and CO2 indoor and outdoor offices at different floor heights gradually decrease with the increase of floor height. ② For the seasonal variation, the trend of indoor and outdoor temperature of offices with different floors is ranked as follows: summer > autumn > spring > winter. The indoor humidity presents the rule of summer > spring > autumn > winter, while the rank of indoor PM2.5 is winter > spring > autumn > summer. However, the outdoor humidity, outdoor PM2.5 and indoor and outdoor illumination, formaldehyde TVOC and CO2 have little relationship with seasonal alternation. ③The indoor and outdoor environmental quality of offices with different floor heights showed no significant difference on weekdays and weekends. ④For the diurnal variation, the indoor and outdoor temperature, humidity, illumination, formaldehyde, TVOC and CO2 of offices at different floors have obvious trends, except PM2.5. The concentrations of formaldehyde, TVOC and CO2 decrease with the increase of floor height, and there is a lag effect on the variation trend of indoor and outdoor environmental quality factors.