Validation of low-cost personal air quality sensor against real-time monitors for particles and gaseous pollutants

ABDULLAH, MUHAMAD ARIF (2020) Validation of low-cost personal air quality sensor against real-time monitors for particles and gaseous pollutants. [Project Paper] (Submitted)

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Abstract

Recently, with the help of advanced technology, some countries have developed low-cost personal air quality sensors to improve air quality monitoring. Flow is one form of personal low-cost sensors developed in French by a group of Plume Labs experts which can quantify personal exposure in real-time. Low-cost sensors can be cost-effective to improve monitoring performance, but the reliability of data obtained is uncertain. This research aims to assess the validity of a personal low-cost air quality sensor against the real-time instrument of particle, DustTrak TSI, and gaseous pollutant, Aeroqual Series 500 and PpbRAE 3000. Two Flow were used (Flow 1 series number 020000002258, Flow 2 series number 020000002273) and deployed side by side with the real-time monitors in indoor lab and outdoor of a campus building.Spearman’s rank correlation was used to determine the coefficient value (r) between the instruments.The results indicated that there was strong positive correlation for PM 2.5, NO2 and VOC when the average measurements of Flow was compared to each other in the outdoor setting (R=0.8 P= 0.001, R=0.78 P=0.001, R=0.86 P=0.001).n an indoor setting, the results indicated that there was strong positive correlation for PM 2.5, NO2 and VOC when the Flow was compared to each other (R=0.7 P= 0.001, R=0.93 P=0.001, R=0.86 P=0.001).For Flow against the real-time monitors in indoor setting, there was moderate positive correlation for PM10, (R=0.34, P=0.001). For Flow against real-time instrument of particle, DustTrak TSI, and gaseous pollutant, Aeroqual Series 500 and PpbRAE 3000. in outdoor setting, there were moderate positive correlation for PM10, and PM2.5 (R=0.34 P=0.001, R=0.32 P=0.001). Meanwhile, there was negative correlation for NO2 (R=-0.01 P=0.001). As a conclusion, the validity of the data generated by Flow required further study. Data generated by Flow need to be compared with the standard instruments and standard gold methods such as gravimetric and passive measurements. Keywords: Personal low-cost sensor, Real-time monitors, Validity, Personal air pollution exposure, Air quality

Item Type:	Project Paper
Faculty:	Faculty of Medicine and Health Science
Depositing User:	Mr Hafizzuddin Hamidon
Date Deposited:	12 Apr 2023 06:59
Last Modified:	12 Apr 2023 06:59
URI:	http://psaspb.upm.edu.my/id/eprint/832

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