INTERNET OF THINGS (IOT) BASED AIR POLLUTION MONITORING SYSTEM ABSTRACT: The level of pollution has increased with times by lot of factors like the increase in population, increased vehicle use, industrialization and urbanization which results in harmful effects on human well by directly affecting health of population exposed to it. In order to monitor In this project we are going to make an” IOT Based Air Pollution Monitoring System ” in which we will monitor the Air Quality over a web server using internet and will trigger a alarm When the air quality goes down beyond a certain level, means when there are sufficient amount of harmful gases are present in the air like CO2, smoke, alcohol, benzene and NH3. It will show the air quality in PPM on the LCD and as well as on web page so that we can monitor it very easily. In this IOT project, you can monitor the pollution level from anywhere using your computer or mobile. System is designed, implemented and tested to monitor the pinpoints of air pollution of any area. It consists of a micro controller, gas sensors, mobile unit, a temporary memory buffer and a web server with internet connectivity which collects data from different locations along with coordinate’s information at certain time of a day. The readings for particular location are averaged in a closed time and space. The Global Positioning System (GPS) module is attached to a system to provide accurate representation of pollution sources in an area. The recorded data is periodically transferred to a computer through a General Packet Radio Service (GPRS) connection and then the data will be displayed on the dedicated website with user acceptance. As a result large number of people. TABLE OF CONTENTSLetter of Transmittal IIDeclaration IIICertificate IVAcknowledgement VExecutive Summary VICHAPTER 01 INTRODUCTION 1.1 Introduction 011.2 Historical Background 011.3 Objectives 041.4 Summary 04CHAPTER 02SONAR TECHNOLOGY2.1 IoT Projece 082.2 About IoT 092.3 Arduino 132.4 Circuit Diagram and Explanation 142.5 Arduino Description 152.6 Working Explanation 18.104.22.168Testing and Output of the ProjectMethodologyDesign SpecificatioCHAPTER 03CONTROLING 203.1 Gass Sensor 213.2 Gas Sensor Diagram 223.3 Gas Detectors Work 253.4 Code Explanstion 26CHAPTER 04 DISPLAY4.1 LCD Display 364.2 LCD Terminal 374.3 Display Diagram 444.4 Display Code 46CHAPTER 05 POTENTIOMETER5.1 Potentiometer 515.2 Digital Analog Potentiometer 525.3 Potentiometer Diagram 545.4 Buzzer 555.5 Buzzer Diagram 56CAPTER 06CAPTER 07 DISCUSSION AND CONCLUSION 7.1 Discussion 617.2 Limitation 627.33.4 Future WorksConclusion 63 References 64LIST OF FIGURESFigure 2.1 Figure Name 1Figure 2.2 Figure Name 2Figure 2.3 Figure Name 3Figure 2.4 Figure Name 4Figure 2.5 Figure Name 5Figure 2.6 Figure Name 6Figure 2.7 Figure Name 7Figure 2.8 Figure Name 8Figure 2.9 Figure Name 9Figure 2.10 Figure Name 10Figure 3.1 Figure Name 11Figure 3.2 Figure Name 12List of TablesTable 3.1 Table Name 1Table 3.2 Table Name 2Table 4.1 Table Name 3Table 5.1 Table Name 4Table 5.2 Table Name 5CHAPTER ONEIntroduction1.1 Introduction The main objective of IOT Air & Sound Monitoring System is that the Air and sound pollution is a growing issue these days. It is necessary to monitor air quality and keep it under control for a better future and healthy living for all. Due to flexibility and low cost Internet of things (IoT) is getting popular day by day. With the urbanization and with the increase in the vehicles on road the atmospheric conditions have considerably affected. Harmful effects of pollution include mild allergic reactions such as irritation of the throat, eyes and nose as well as some serious problems like bronchitis, heart diseases, pneumonia, lung and aggravated asthma. Monitoring gives measurements of air pollutant and sound pollution concentrations, which can then be analyzed interpreted and presented. This information can then be applicable in many ways. Analysis of monitoring data allows us to assess how bad air pollution and sound pollution from day to day.1.2 Historical BackgroundThe commercial meters available in the market are Fluke CO-220 carbon monoxide meter for CO, Amprobe CO2 meter for CO2, For Semicon LPG gas leakage sensor alarm for LPG leakage detection. The researchers in this field have proposed various air quality monitoring systems based on WSN, GSM and GIS. Now each technology has limited uses according to the intended function, as is meant for users with trans-receiver, Bluetooth. GIS based system is designed, implemented and tested to monitor the pinpoints of air pollution of any area. It consists of a micro controller, gas sensors, mobile unit, a temporary memory buffer and a web server with internet connectivity which collects data from different locations along with coordinate’s information at certain time of a day. The readings for particular location are averaged in a closed time and space. The Global Positioning System (GPS) module is attached to a system to provide accurate representation of pollution sources in an area. 1.3 Objectives Objects, animals or people that are provided with unique identifiers and the ability to transfer data over a network without requiring human-to-human or human-to-computer interaction.IoT has evolved from the convergence of wireless technologies, micro-electro mechanical systems (MEMS), micro services and the internet. The convergence has helped tear down the silo walls between operational technology (OT) and information technology (IT), allowing unstructured machine-generated data to be analyzed for insights that will drive improvements.1.4 SummaryThe system to monitor the air of environment using Arduino microcontroller, IOT Technology is proposed to improve quality of air. With the use of IOT technology enhances the process of monitoring various aspects of environment such as air quality monitoring issue proposed in this paper. Here the using of MQ135 gas sensor gives the sense of different type of dangerous gas and arduino is the heart of this project which controls the entire process. Wi-Fi Module connects the whole process to internet and LCD is used for the visual Output.The Automatic Air & Sound management system is a step forward to contribute a solution to the biggest threat. The air & sound monitoring system overcomes the problem of the highly-polluted areas which is a major issue.