Abstract
Air quality is getting worse worldwide, especially in cities with high population density and many industrial parks. Raising community awareness and applying science and technology are effective ways to mitigate the negative impacts of industrialization and pollution on the natural environment as well as public health. This work presents the design and deployment of an IoT-based air quality monitoring system, named the Environmental Monitoring System (EnMoS). LoRa (Long-Range) wireless communication technology and innovation sensors being used aim to facilitate the development of data communication network over a large area, improving sensing reliability, extending battery life as well as reducing total system costs. The air quality factors such as particulate matter (PM2.5 and PM10), carbon dioxide (CO2), air temperature and humidity, after being read from the sensors were uploaded to a real-time database server for Air Quality Index (AQI) calculation. In addition, for indicating conveniently obtained AQI values a web page is also developed to provide an interactive map along with corresponding charts. A case study on an actual LoRa network consisting of three sensing nodes and a gateway were conducted for validating the feasibility of the system.
Highlights
Climate change has been causing significant impacts on people’s living conditions, stability, and socio-economic development status in the Lower Mekong River Basin day by day
We presented the implementation of an Internet of Things (IoT)-based air quality monitoring system, namely the Environmental Monitoring System (EnMoS) system
We deployed a LoRa star network consisting of a gateway for data collection, uploading to cloud server and three wireless sensing nodes at three typical laboratories on campus
Summary
Climate change has been causing significant impacts on people’s living conditions, stability, and socio-economic development status in the Lower Mekong River Basin day by day. Due to population growth, the rapid increase of industrialization, as well as indiscriminate use of chemical fertilizers and pesticides in agriculture, are causing serious impacts on the environment, climate, and public health. Air quality is getting worse noticeably, especially in urban areas where high population density and many industrial parks. Air Quality Index is a metric to assess how polluted the air is. Air pollution levels in Hanoi and Ho Chi Minh City have reached alarming levels [2]. According to Vietnam's AQI ranking (see Table I), the index reaches a threshold of over 150
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