Development of Real-time IoT based Air and Noise Monitoring System

Modernization has brought the world technological advancements, but it has also brought with it a slew of problems. In today's Malaysia, air and noise pollution are becoming more of a concern, along with a rise in occupational disease. A monitoring system is needed to address these issues. This paper describes the development of a real-time IoT-based air and noise pollution monitoring system that can provide monitoring and alert the user to the pollution levels. This monitoring system was built using IoT technology, which included the use of an ESP8266 Wi-Fi Module NodeMCU as a microcontroller to communicate with the chosen IoT analytics platform, ThingSpeak. A gas sensor MQ9 was used to measure carbon monoxide concentrations, and a sound sensor LM393 was used to measure noise levels in the surrounding area. The measured values were displayed on the Arduino software's serial monitor, then sent to the ThingSpeak server and graphically displayed in real time on a screen. The results of the electronic sensors were compared to the results of the stand-alone carbon monoxide meter and digital sound level meter for validation. The proposed monitoring system produced promising results, with 91.12 % and 97.86 % accuracy for gas and sound levels shown by the gas sensor MQ9 and sound sensor LM393, respectively. The framework also provides ThingSpeak server warning messages. When the calculated conditions exceeded the user's defined cap, the server sent the user an email update with the gas and noise limit status. This has made the system more useful and convenient.

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Noise Pollution Monitoring at Some Indoor Environments in Basrah City, Iraq

Biological and Applied Environmental Research ◽

10.51304/baer.2022.6.1.24 ◽

2022 ◽

Vol 6 (1) ◽

pp. 24-34

Author(s):

Inaam Qzae

Keyword(s):

Noise Pollution ◽

Sound Level ◽

Pollution Monitoring ◽

Educational Institutions ◽

Living Room ◽

Indoor Environments ◽

Residential Areas ◽

Sound Levels ◽

Educational Institute ◽

Study Results

Noise is an unavoidable stressor nowadays; it adversely affects human health and the ability to perform mental and complex tasks. Eight selected points representing home environment were sampled in urban zones, the indoor and outdoor noise levels in these residential areas were evaluated during the summer and winter seasons. Also, nine points in educational institute represented by the College of Science through its lecture halls, laboratories and corridors, to compare them with WHO limits of sound pressure levels, to assess the level of noise experienced by people in indoor closed environments. The current study results showed higher sound levels than required inside homes and educational places. For homes, the highest sound level was 73.9 dB during summer in the living room and the lowest was 42.1 in winter in the bedroom, while the highest sound level in the educational environment was 72.37 dB in summer and the lowest was 61.75 dB in winter. Exposure of individuals to high levels of noise in educational institutions and in their homes means longer hours of exposure to noise pollution, which will negatively affect their health. Thus there is a serious need nowadays to adopt suitable control to reduce noise pollution at indoor points.

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Relation between soundscape and spatial configuration in different urban contexts

INTER-NOISE and NOISE-CON Congress and Conference Proceedings ◽

10.3397/in-2021-1834 ◽

2021 ◽

Vol 263 (5) ◽

pp. 1405-1414

Author(s):

Benameur Okba ◽

Valerio Cutini ◽

Francesco Leccese ◽

Giacomo Salvadori ◽

Noureddine Zemmouri

Keyword(s):

Spatial Configuration ◽

Space Syntax ◽

Noise Pollution ◽

Developed Countries ◽

Sound Level ◽

Sound Levels ◽

Close Relationship ◽

Urban Contexts ◽

Level Meter ◽

Global And Local

During the last decade, the problem of noise pollution has continued to increase in Europe as well as in under-developed countries. This issue is stressed in city centers, owing to the abundance of residential activities, vehicle traffic and multiple services. This study investigates the relationship between urban spatial configuration and environment soundscape in two different areas: Pisa historic center, Italy and Biskra downtown, Algeria, using the potential of Space Syntax theory in predicting noise levels distribution. For this analysis, thirty stations of measurements were held in each area during day time using a Sound Level Meter. A Noise map was modeled using the interpolation tool provided by a Geographic Information System program, while the collected data were correlated with the Angular Segment Analysis variables. The findings reveal a close relationship between the sound levels obtained and Space Syntax theory global and local indexes such as Normalized Choice and Integration, which signifies the ability of the approach in describing the sound phenomenon in different urban contexts.

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IoT-Based Real Time Air Pollution Monitoring System

International Journal of Grid and High Performance Computing ◽

10.4018/ijghpc.2019100103 ◽

2019 ◽

Vol 11 (4) ◽

pp. 28-41 ◽

Cited By ~ 1

Author(s):

Cynthia J. ◽

Saroja M.N. ◽

Parveen Sultana ◽

J. Senthil

Keyword(s):

Air Pollution ◽

Real Time ◽

Monitoring System ◽

Geographical Area ◽

Ambient Air ◽

Pollution Monitoring ◽

Pollution Level ◽

Air Pollution Monitoring ◽

Pollution Levels ◽

Major Factors

Humans can be adversely affected by exposure to air pollutants in ambient air. Hence, health-based standards and objectives for a number of pollutants in the air are set by each country. Detection and measurement of contents of the atmosphere are becoming increasingly important. Careful planning of measurements is essential. One of the major factors that influence the representativeness of data collected is the location of monitoring stations. The planning and setting up of a monitoring station are complex and incurs a huge expenditure. An IoT-based real time air pollution monitoring system is proposed to monitor the pollution levels of various pollutants in Coimbatore city. The geographical area is classified as industrial, residential and traffic zones. This article proposes an IoT system that could be deployed at any location and store the measured value in a cloud database, perform pollution analysis, and display the pollution level at any given location.

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Sound Levels And Spectra At Ikot Uduak (MCC) Timber Market, Calabar, Cross River State, Nigeria

European Scientific Journal ESJ ◽

10.19044/esj.2016.v12n15p231 ◽

2016 ◽

Vol 12 (15) ◽

pp. 231

Author(s):

Okoro, R.C. ◽

Bassey D.E. ◽

Umunnah, R.A.

Keyword(s):

Real Time ◽

Sound Level ◽

Physical Parameters ◽

Sound Level Meter ◽

Cross River ◽

Cross River State ◽

Time Frequency ◽

Sound Levels ◽

Level Meter ◽

Timber Market

Acoustic and physical parameters of machines at Ikot Uduak timber market in Calabar, Cross River State, Nigeria were measured using a sound level meter and a real time frequency analyzer. The sound level meter was Mastech model MS6700. This has 30dB -130dB capability, with an accuracy of ± 1.5 dB. Real Time Audio Spectrum Analyzer, version 3.3 was used. The results showed that A-weighted sound levels with the meter at 1m away from the wood working machines were 100.5 dBA, 98.5 dBA, 98.2 dBA, 101.5 dBA and 90.5 dBA for Band saw, Table saw, Plainer, Spindle/Curving machine and the Drilling machine respectively. From this, the threshold for dangerous levels of noise, as stipulated by the Academy of Pediatrics and the National Campaign for Hearing and Health, which is 85 dB., and the Occupational Safety and Health Act (OSHA) permissible level of 90dBA for 8-hour day and 5 days a week, have been exceeded, and this could lead to hearing impairments.

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Assessment of real-time odor monitoring system using gas sensor in livestock farm: field study

Journal of Odor and Indoor Environment ◽

10.15250/joie.2018.17.3.241 ◽

2018 ◽

Vol 17 (3) ◽

pp. 241-249

Author(s):

Min hwan Oh ◽

Eun Young Lee

Keyword(s):

Field Study ◽

Real Time ◽

Gas Sensor ◽

Monitoring System ◽

Livestock Farm ◽

Odor Monitoring

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Testing of Sonic-Absorbent Panels’ Behavior in Open-Air Environment

Volume 12: Vibration, Acoustics and Wave Propagation ◽

10.1115/imece2012-86823 ◽

2012 ◽

Author(s):

Petru A. Pop ◽

Patricia A. Ungur ◽

Liviu Lazar ◽

Mircea Gordan ◽

Florin M. Marcu

Keyword(s):

High Frequency ◽

Noise Pollution ◽

Sound Level ◽

Sound Level Meter ◽

Data Logger ◽

Public Buildings ◽

Gypsum Plaster ◽

Level Meter ◽

And Control

One wildly used method to reduce and control the noise pollution in green city’s buildings is using sonic-absorbent panels. Their applications can be multiple, such as the insulation of buildings, acoustic barriers and fences along the highway or in front of supermarkets, hospitals and other public buildings. This paper presents a method for testing the behavior of sonic-absorbent panels in open-air environment. The work represents a carrying on of previous research about absorbent materials from gypsum family, tested in lab conditions. The experiment setup used a dynamic installation and as a sample a stand formed by six sonic-absorbent panels from special modeling alpha-gypsum plaster. This installation has been composed of two loudspeakers for emitting the sound at a well-defined frequency by the first laptop, the microphone for detecting and transmitting the signal to the second laptop for analyzing and processing the data. All operations were performed using MATLAB Programs, while a Data Logger Sound Level Meter type CENTER 332 was put on near the microphone to compare both results. The first experiment of acoustic stand has been realized by setting up the installation at a frequency from 50 Hz to 1250 Hz and altering the distance between loudspeakers and stand at 0.5m to 1m and 1.5m, respectively. The second experiment kept the same test’s conditions, while two and three layers of sonic-absorbent panels formed the stand, respectively, but at same distance from source of 0.5 m. In both tests, the results underlined the good sonic-absorbent properties of these panels, especially at medium and high frequency, which can recommend using the panels for multiple outside applications.

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