Applicability of compact and useful PM2.5 instrument with gas sensors in Japan and Thailand

IF 3.4 Q2 ENVIRONMENTAL SCIENCES
Humm Kham Zan Zan Aung , Suwanna Kitpati Boontanon , Jiaru Li , Yosuke Sakamoto , Kentaro Murano , Narin Boontanon , Yoshizumi Kajii
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引用次数: 0

Abstract

Sophisticated standard instruments are not always available for high-density multipoint air quality observations owing to their relatively high cost, large size, and high-power consumption. Low-cost sensors may be used as supportive or potential solutions for atmospheric observations. This study aimed to evaluate applicability of the compact and useful PM2.5 instrument with gas sensors (CUPI-G), which can measure real-time temperature, humidity, particulate matter (PM2.5), carbon monoxide (CO), nitric oxide (NO), nitrogen dioxide (NO2), and oxidant, Ox (O3+NO2), and to observe the respective air pollution patterns in the suburban areas of developed and developing countries, selected as Japan and Thailand, respectively. The CUPI-G was validated with collocated standard instruments at both sites using a mathematical correction method to improve reproducibility before observation. Air quality observations were conducted for two weeks respectively from June 1st to June 14th, 2022, in Kyoto City, Japan and from October 28th to November 12th, 2022, in Nong Khaem District, Bangkok Province, Thailand, using CUPI-G. In Japan, applicability of the CUPI-G revealed different correlations, r = −0.30 to 0.89 with data from the nearest air monitoring station. In Thailand, it achieved strong correlations, r = 0.71 to 0.82 with the results of the nearest station. This study revealed the applicability performance, aiding future deployment of the CUPI-G and corresponding air pollution characteristics at observatories. Our results suggest a better performance of CUPI-G at polluted sites and recommend its use in developing countries having less-developed sites with lack of routine measurement equipment.
具有气体传感器的小巧实用的PM2.5仪器在日本和泰国的适用性
精密的标准仪器由于其相对较高的成本、较大的尺寸和高功耗,并不总是可用于高密度多点空气质量观测。低成本传感器可作为大气观测的辅助或潜在解决方案。本研究旨在评估可实时测量温度、湿度、颗粒物(PM2.5)、一氧化碳(CO)、一氧化氮(NO)、二氧化氮(NO2)和氧化剂Ox (O3+NO2)的小型实用气体传感器(CUPI-G)的适用性,并观察发达国家和发展中国家(分别为日本和泰国)郊区的空气污染模式。为了提高观察前的重现性,在两个地点配置了标准仪器,采用数学校正方法对CUPI-G进行了验证。在2022年6月1日至6月14日,在日本京都和2022年10月28日至11月12日,在泰国曼谷省Nong Khaem区分别进行了为期两周的空气质量观测。在日本,cpui - g的适用性与最近的空气监测站的数据显示出不同的相关性,r = - 0.30至0.89。在泰国,它与最近的站点的结果具有很强的相关性,r = 0.71至0.82。本研究揭示了CUPI-G的适用性,有助于未来在天文台部署相应的空气污染特征。我们的研究结果表明,CUPI-G在污染场地具有更好的性能,并建议在缺乏常规测量设备的欠发达场地的发展中国家使用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Atmospheric Environment: X
Atmospheric Environment: X Environmental Science-Environmental Science (all)
CiteScore
8.00
自引率
0.00%
发文量
47
审稿时长
12 weeks
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