IOT Based Wireless Sensor Network for Air Pollution Monitoring

Governments of many countries have imposed different regulations on air pollutants, so the severe damage brought to human health is reduced considerably. Although there may be no the immediate damage to human lives, however, air pollution still causes some chronic diseases. According to epidemiological studies, for example, the long-term exposure to pollutants may result in the harm to respiratory, nervous and cardiovascular systems. Therefore, the real time monitoring of the air quality is particularly important and necessary.

The Air Quality Monitoring System (AQMS) is a facility to measure wind speed, direction, other weather parameters, concentration of air pollutants (such as SO2, NOx, CO, O3, THC etc), and particulate matters continuously all year round. The measured data can be remotely monitored and exported in various formats to the local central authorities. The data can be published via the Internet for easy public access to raise awareness on current air pollution levels. This way, the public can prevent outdoor activities and reduce health impacts during heavy polluted days.

In this system, we are using dust sensors that can able to measure particulate matter, MQ2 sensor that can able to identify the smoke or any toxic gases that are present in the environment. Along with it a dht11 sensor that can measure the humidity and temperature of surroundings. The data from the sensors can be collected and processed by the Raspberry Pi and is displayed on the LCD screen along with an IOT. So that people can view or monitor the parameters from anywhere.

Keywords: Raspberry Pi, IOT, Air quality monitoring, Dust Sensor.