Abstract- In this paper monitoring of air, noise and water pollution and control of water pollution has been done. Every
parameter measure in this paper can be monitor through any PC having internet connection by using IOT app made. The
MQ7 Gas sensor will measure amount of CO2 gas present in air around industry. Microphone is used as an audio sensor,
it will measure amount of noise present in the industry. For water pollution various parameters are measured that are pH
level, Temperature, Turbidity and also sense level of water present in reservoir in industry. When turbidity of water present
in reservoir reaches the given threshold then it can be decrease by heating of water by using heater and when level of water
exceeds the capacity of reservoir then automatically solenoid valve get open.
Keywords-Internet of things (IOT), MQ7 Gas Sensor