Concept Development and Field Testing of Wireless Outdoor Indicator System for Use in Monitoring Exposures at Work among Malaysian Traffic Police

Autor: Putri Anis Syahira Mohamad Jamil, Nur Athirah Diyana Mohammad Yusof, Karmegam Karuppiah, Irniza Rasdi, Vivien How, Shamsul Bahri Mohd Tamrin, Muhammad Hasnolhadi Samsudin, Sivasankar Sambasivam, Nayef Shabbab Almutairi
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Toxics, Vol 11, Iss 4, p 385 (2023)
Druh dokumentu: article
ISSN: 2305-6304
DOI: 10.3390/toxics11040385
Popis: 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 (PM2.5), carbon monoxide (CO), and nitrogen dioxide (NO2) 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 (PM2.5-rs = 0.207, p = 0.019; NO2-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.
Databáze: Directory of Open Access Journals