REAL TIME AIR AND WATER POLLUTION MONITORING

Abstract

Here we develop a device that measures air and water pollution along with displaying time. With this people will no longer special equipment to measure pollution levels, they can monitor pollution levels anywhere and anytime desired. This battery powered system is operated by an STM32 Microcontroller along with a air quality sensor, gas sensor, pH sensor and mini OLED display. The device is a combination of sensors and electronics. The air quality sensor is used to detect the amount of air pollution in the air as ppm levels. This data is processed by microcontroller to get the current air quality. The device also monitors for any flammable gases in the vicinity to detect any flammable gas leakages using flammable gas sensor. This sensor is constantly monitored by controller. Now we have a pH sensor that is used to detect the pH level of any water body. The user can just dip the pH sensor on his/her smart watch to get pH level. The sensor data is processed by controller and displayed on the display module. Similarly, The sensor is used to transmit the water turbidity value to controller which is displayed on display. Ph is used to display water quality of any water body (lake, pond, canal, sea). It allows to set high and low acceptance values of each parameter using push buttons. If any of the values scanned shows up higher/lower than set limits it sounds a buzzer alert as well displays the alert message to the user on the OLED display.