An IoT-based Air Quality Monitoring Platform
IoT, ESP32, Zabbix, Air Monitoring, Smart Cities.
Air pollution is a major environmental problem and causes serious damage to human health.
Considering the Covid-19 pandemic scenario, the importance of monitoring and controlling
pollution emissions has become even more relevant and essential in combating the disease.
Aiming to contribute with technological tools, this work presents a proposal for a system
based on IoT, using low-cost sensors to monitor the most harmful pollutants to health,
according to the recommendations of theWorld Health Organization. The proposal includes
the development of a hardware layer device capable of measuring the concentrations of
the following pollutants: Particulate Matter (PM2.5 and PM10), Ozone, Carbon Monoxide,
Nitrogen Dioxide, and Ammonia, using three sensors: HPMA115S0, MICS-6814, and ZE25-
O3, respectively. The device will be equipped with the ESP-WROOM-32 microcontroller,
which features Wi-Fi and Bluetooth wireless interfaces, allowing data transmission to a
cloud server. The data will be made publicly available through a web dashboard. It is
important to highlight that the main differential of the proposal is the implementation
of periodic notifications and the sending of alerts when a certain pollutant reaches the
maximum acceptable concentration.