Citation

Mohamad Jamil PAS, Mohammad Yusof NAD, Karuppiah K, Rasdi I, How V, Mohd Tamrin SB, Samsudin MH, Sambasivam S, Almutairi NS. Toxics (Basel) 2023; 11(4).

Copyright

(Copyright © 2023, MDPI: Multidisciplinary Digital Publishing Institute)

DOI

10.3390/toxics11040385

PMID

37112612

PMCID

PMC10147009

Abstract

Real-time exposure air monitoring is essential to protect the respiratory health of the Malaysian traffic police. However, the data from monitoring stations have been inadequate to provide accurate information about their exposure. This report describes the conceptual design of a wireless exposure indicator system, and then evaluates the field performance of the system by collocation. The study tested the accuracy of particulate matter size 2.5 (PM(2.5)), carbon monoxide (CO), and nitrogen dioxide (NO(2)) by comparing the measurements from the prototype with the measurements from reference instruments. The field testing found that the data tested were significantly correlated with each other (PM(2.5)-rs = 0.207, p = 0.019; NO(2)-rs = 0.576, p = 0.02 and CO-rs = 0.545, p = 0.04). The prototype proved to be successful as it can compute and transmit real-time monitoring data on the level of exposure to harmful air.

Language: en

Keywords

air pollution; ambient air monitoring; field evaluation; occupational exposure; wireless sensor