Where pollution has become a major problem around the world, air pollution is the most dangerous, shocking and severe pollution among other pollutions e.g. water pollution, soil pollution, noise pollution, light pollution, thermal pollution etc. Air pollution is the major cause of diseases like asthma, cancer, bronchitis, birth defects and immune system like diseases. This system implements the combination of an arduino, gas sensors (CO2, CO, LPG) and particle detector PPD42 to sense the air quality of the environment and shows the real condition of air using a LCD I2C display unit. This device can be used to monitor various gasses at a time. The system will give the user the indication of the air quality and based on given parameters it will let the user know how much the environmental air is polluted or safe.

The air pollution detector was implemented and tested successfully. We first checked the working of components by using Arduino Uno. Then we assembled all the components together and tested by applying smoke near to the detector. The project is working fine and displays the values in the LCDI2C. In future, we can incorporate even more accurate devices for temperature and humidity sensing in the sensor’s environment than DHT11 will also be covered in future. We can monitor the pollution detection system in real time by using wireless technology. Also we can add the alert system to indicate the quality of air.

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