Copyright © 2018 Authors. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. International Journal of Engineering & Technology, 7 (2.32) (2018) 18-22 International Journal of Engineering & Technology Website: www.sciencepubco.com/index.php/IJET Research paper Detection of noxious gases by implementing internet of things technology G. ArunSai 1 , B.BharatKumar 2 , K.Sai Likhitha 3 ,Raju Anitha 4 1, 2,3,4 Department of computer science and Engineering, Koneru Lakshmaiah Education Foundation, Vaddeswaram, Guntur, Andhra Pradesh, India – 522502 *Corresponding author E-mail: arunsai3106@gmail.com: Abstract Harmful gas leakage accidents are the main reason for workers death in industries which work mainly using chemicals. Gas leakage can be easily detected and controlled by using latest trends in information technology by applying internet of things. This project intended to avoid industrial accidents and to monitor harmful gases and to intimate alert message to safety control board of industry using arduino Uno r3 and internet of things. Arduino Uno r3 board is used as central microcontroller which is connected with sensor. Such as tempera- ture, gas sensor, alcohol sensor which can continuously monitor respective environmental parameters. Hence this device may be used as multi gases detection apparatus more over the rate of response is high. An alarm is produced instantly if the level of the gases goes above the normal level means indication through the internet specific receiver section. Data received by sensor is stored in internet which can be used for further processing and it can be analyzed for improving safety regulations. This model can be future extended for providing better living environment for people in and around industries with a pollution controlled environment. Keywords: Ardunio Uno R3, Gas Sensor, Radiation Sensor, Wi-Fi Module, Internet Of Things. 1. Introduction These days harmful gases leakage is the main reason for industrial accidents and depths of workers in industries. Pollutants released by industries in to atmosphere is also a cause for the environmen- tal pollution and such the reason greatly effects humans and ani- mals health by minimizing the levels of oxygen and increasing the levels of harmful gases like ammonia, carbon monoxide, nitrogen trifluoride, sulfur hexafluoride etc,, .These gases are mainly the reason for increasing the no of pollutants in atmosphere. These environmental pollutants are mainly released by industries work- ing with chemicals. Industries management only have a eye on profits and consider environmental safety as least priority which in turn affects the atmosphere and industrial workers health who are living in and around industries as the level of harmful gases are high around industrial areas compared to normal living places. As the population depends more on usage of oil, gas and coal for generating energy to meet the energy demand by increasing popu- lation the release of harmful pollutants increases day by day .it is observed that about a 1.1 billion of human population respiration is done through unhealthy air and recorded 7 million deaths occur globally [9, 10].Industries started peoples or industries owner fully focus on the profit oriented. They do not focus on the workers, people safety and environment safety also. Generally industries are located in the outside cities. But some industries are located at the middle of the cities and village because of the transport rea- sons or for the availability of raw materials. Due to human error and machine failures etc gas leakage accidents occur often but ceases many workers in to death beds. Gas leakage and detection of gas leakages and harmful gases in and around industries and can be effectively handled by using sensors and automation using IOT . Here we developed a basic model for detection of harmful gases and measurement of harmful gases on a self-calibrated ppm scale and notifying the workers of industry by sms in case any gas leakage is occurred in any sector of the industry. Hardware of system proposed This system using limited gases sensor and limited radiation sen- sor these sensors are collecting data transmitting using Wi-Fi module to internet of things (IOT) module. Most dangerous area accidents occur time intimated data sending speed is high must need. IOT module using transmitting and receiving data range is high and extendable as possible [1]& [2]. The poisonous gas and radiation or leakage monitoring process of the system marked with the importance of real-time detection and control of the poi- sonous gas and radiation so as to automate the controlling and monitoring system for real time utilization [7]. 2. Related Works The existing system used zigbee module transmitting and receiv- ing information data bit rate is 250 kilo bits per second [6]. This system is mainly used wifi module transmitting and receiving information data bit rate is 54 mega bits per second. wifi module using getting information very quickly to reach desired designa- tion or location peoples or related government officers. Hard Ware Used 1) Ardunio Uno r3 2) Mq2 gas sensor 3) Mq7 gas sensor 4) Mq135 gas sensor 5) radiation sensor 6) Alarm 7) Temperature sensor lm35