空气加湿器对室内空气质量影响研究

doi:10.3969/j.issn.1673-503X.2018.05.021

气象与环境学报 ›› 2018, Vol. 34 ›› Issue (5): 163-168.doi: 10.3969/j.issn.1673-503X.2018.05.021

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空气加湿器对室内空气质量影响研究

朱忆萌¹, 郭振东²

1. 南京师范大学附属中学, 江苏南京 210003;
2. 南京信息工程大学大气物理学院, 江苏南京 210044

收稿日期:2018-08-02 修回日期:2018-09-04 出版日期:2018-10-31 发布日期:2018-10-31
通讯作者: 郭振东,E-mail:guozhendong2016@163.com E-mail:guozhendong2016@163.com
作者简介:朱忆萌,女,2001年生,在读学生,主要从事大气环境研究,E-mail:2262117908@qq.com
基金资助:
国家自然科学基金面上项目（41575148）资助。

The study on impact of air humidifier on indoor air quality

ZHU Yi-meng¹, GUO Zhen-dong²

1. High School Affiliated to Nanjing Normal University, Nanjing 210003, China;
2. School of Atmospheric Physics, Nanjing University of Information Science and Technology, Nanjing 210044, China

Received:2018-08-02 Revised:2018-09-04 Online:2018-10-31 Published:2018-10-31

摘要/Abstract

摘要： 选用超纯水、矿泉水和自来水作为加湿水源，采用某品牌超声波家用空气加湿器对一间封闭办公室进行加湿。通过PM_2.5中流量采样器，气溶胶粒径分级采样器以及宽范围气溶胶粒径谱仪（WPS）测量室内气溶胶质量浓度、质量浓度粒径分布、数浓度和粒径谱分布，采用离子色谱仪分析样本水溶性离子组成。结果表明：不同水源加湿后室内PM_2.5质量浓度都有明显增长且以水溶性离子为主，其中超纯水、矿泉水和自来水分别可使室内PM_2.5质量浓度净增16.9，46.0和428.2 μg·m^-3。加湿主要是使2.1 μm以下的细粒径段的质量浓度和离子浓度增加最显著，增加的主要离子（SO₄^2-，NO₃^-，Cl^-，Na⁺，Ca²⁺，K⁺）与水源中水溶性离子组成直接有关。WPS测量表明，超纯水和矿泉水加湿后室内气溶胶数浓度增加粒径峰值在20 nm左右，而自来水加湿后数浓度增加峰值在30 nm左右，数浓度的增量都达1个数量级以上。加湿后，WPS得到的质量浓度增加峰值在500—600 nm，与气溶胶粒径分级采样器得到0.43—0.65 μm质量浓度增量峰值基本一致。使用超声波空气加湿器时选用纯净水作为水源更安全。

关键词: 空气加湿器, 室内空气质量, 气溶胶, PM_2.5, 水溶性离子

Abstract: In this study,ultra-pure water,mineral water and tap water were selected as humidifying water sources.One brand household ultrasonic humidifier was adopted to humidify on a closed office.By using intelligent flow PM_2.5 sampler,FA-3 aerosol particle size sampler and wide-range particle size spectrometer (WPS),the indoor aerosol mass concentration,mass concentration spectrum,particle number size distribution were measured and water soluble ions in aerosol were measured by chromatograph analysis.The results show that indoor PM_2.5 mass concentrations have obvious growth and dominant of water soluble ion after humidification by different types of water.The net increase by humidification of ultrapure water,mineral water and tap water in indoor PM_2.5 were 16.9,46.0 and 428.2μg·m^-3 respectively.The humidification is mainly to increase the mass concentration and ion concentration of the fine particle size range below 2.1μm.The increase of major ions (SO₄^2-,NO₃^-,Cl^-,Na⁺,Ca²⁺,K⁺) were directly related to the most significant ions in the types of water.WPS measurements show that indoor aerosol number concentration increases significantly with a peak at about 20 nm,after humidify by ultrapure water and mineral water.While humidification by tap water,number concentration increases with a peak at about 30 nm.All types of water humidification lead to the number concentration increment of more than one order of magnitude.The increase of mass concentration by WPS peaks in size range of 500-600 nm after humidification,which is in accord with the measurement by aerosol particle size sampler that the peak increment at 0.43-0.65μm.When the ultrasonic humidifier was used,the pure water is recommended for health safety.

Key words: Air humidifier, Indoor air quality, Aerosol, PM_2.5, Water-soluble ions

中图分类号:

朱忆萌, 郭振东. 空气加湿器对室内空气质量影响研究[J]. 气象与环境学报, 2018, 34(5): 163-168.

ZHU Yi-meng, GUO Zhen-dong. The study on impact of air humidifier on indoor air quality[J]. Journal of Meteorology and Environment, 2018, 34(5): 163-168.

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空气加湿器对室内空气质量影响研究

The study on impact of air humidifier on indoor air quality

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