the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Sustaining Low-Cost PM2.5 Monitoring Networks in South Asia: Technical Challenges and Solutions
Abstract. The need to monitor South Asia's air quality stems from its significant negative effects on human and environmental health. Traditional, regulatory-grade air quality monitoring systems have proven costly to operate and very difficult to maintain in most South Asian countries. Low-cost sensor (LCS) networks have been touted as a viable alternative, but the challenges to sustain them have not been evaluated or thoroughly documented. the acceptance of such monitors, in particular by regulatory agencies, across South Asian countries is still lacking. Lack of acceptance is due to prevailing myths (especially, in the regulatory circles of South Asia) about their accuracy, precision, consistency, dependability, maintenance, and calibration concerns. The present study attempts to fill that knowledge gap while also providing practical solutions to enhance the longevity of LCS, perhaps adding years to their lives. Specifically, this study describes strategies and maintenance plans for operating large networks of TSI BlueSky (8143) Sensors across South Asia, with a focus on problems caused by power outages, power surges, weather conditions, and continued exposure to high amounts of dust and pollution. The article provides further support that incorporating LCS networks into the regulatory framework can facilitate the enforcement of environmental regulations and legislation against polluters. The goal is to develop a more reliable and long-lasting air quality monitoring system that will assist South Asian countries to reduce air pollution-related health hazards and consequent socio-economic disruptions.
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