Machine Learning-based Calibration Approach for Low-cost Air Pollution Sensors MQ-7 and MQ-131

Air quality is a vital concern globally, and Sri Lanka, according to WHO statistics, faces challenges in achieving optimal air quality levels. To address this, we introduced an innovative IoT-based Air Pollution Monitoring (APM) Box. This solution incorporates readily available Commercial Off-The-Sh...

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Main Author: L. R. S. D. Rathnayake, G. B. Sakura, N. A. Weerasekara and P. D. Sandaruwan
Format: Article
Language:English
Published: Technoscience Publications 2024-03-01
Series:Nature Environment and Pollution Technology
Subjects:
Online Access:https://neptjournal.com/upload-images/(34)D-1457.pdf
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author L. R. S. D. Rathnayake, G. B. Sakura, N. A. Weerasekara and P. D. Sandaruwan
author_facet L. R. S. D. Rathnayake, G. B. Sakura, N. A. Weerasekara and P. D. Sandaruwan
author_sort L. R. S. D. Rathnayake, G. B. Sakura, N. A. Weerasekara and P. D. Sandaruwan
collection DOAJ
description Air quality is a vital concern globally, and Sri Lanka, according to WHO statistics, faces challenges in achieving optimal air quality levels. To address this, we introduced an innovative IoT-based Air Pollution Monitoring (APM) Box. This solution incorporates readily available Commercial Off-The-Shelf (COTS) sensors, specifically MQ-7 and MQ-131, for measuring concentrations of Carbon Monoxide (CO) and Ozone (O3) ,Arduino and "ThingSpeak" platform. Yet, those COTS sensors are not factory-calibrated. Therefore, we implemented machine learning algorithms, including linear regression and deep neural network models, to enhance the accuracy of CO and O3 concentration measurements from these non-calibrated sensors. Our findings indicate promising correlations when dealing with MQ-7 and MQ-131 measurements after removing outliers.
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spelling doaj.art-bee36ebeae524e09846d9b832ba5af192024-03-12T16:37:29ZengTechnoscience PublicationsNature Environment and Pollution Technology0972-62682395-34542024-03-0123140140810.46488/NEPT.2024.v23i01.034Machine Learning-based Calibration Approach for Low-cost Air Pollution Sensors MQ-7 and MQ-131L. R. S. D. Rathnayake, G. B. Sakura, N. A. Weerasekara and P. D. SandaruwanAir quality is a vital concern globally, and Sri Lanka, according to WHO statistics, faces challenges in achieving optimal air quality levels. To address this, we introduced an innovative IoT-based Air Pollution Monitoring (APM) Box. This solution incorporates readily available Commercial Off-The-Shelf (COTS) sensors, specifically MQ-7 and MQ-131, for measuring concentrations of Carbon Monoxide (CO) and Ozone (O3) ,Arduino and "ThingSpeak" platform. Yet, those COTS sensors are not factory-calibrated. Therefore, we implemented machine learning algorithms, including linear regression and deep neural network models, to enhance the accuracy of CO and O3 concentration measurements from these non-calibrated sensors. Our findings indicate promising correlations when dealing with MQ-7 and MQ-131 measurements after removing outliers.https://neptjournal.com/upload-images/(34)D-1457.pdfiot, mq-7, mq-131, thingspeak, machine learning, neural network
spellingShingle L. R. S. D. Rathnayake, G. B. Sakura, N. A. Weerasekara and P. D. Sandaruwan
Machine Learning-based Calibration Approach for Low-cost Air Pollution Sensors MQ-7 and MQ-131
Nature Environment and Pollution Technology
iot, mq-7, mq-131, thingspeak, machine learning, neural network
title Machine Learning-based Calibration Approach for Low-cost Air Pollution Sensors MQ-7 and MQ-131
title_full Machine Learning-based Calibration Approach for Low-cost Air Pollution Sensors MQ-7 and MQ-131
title_fullStr Machine Learning-based Calibration Approach for Low-cost Air Pollution Sensors MQ-7 and MQ-131
title_full_unstemmed Machine Learning-based Calibration Approach for Low-cost Air Pollution Sensors MQ-7 and MQ-131
title_short Machine Learning-based Calibration Approach for Low-cost Air Pollution Sensors MQ-7 and MQ-131
title_sort machine learning based calibration approach for low cost air pollution sensors mq 7 and mq 131
topic iot, mq-7, mq-131, thingspeak, machine learning, neural network
url https://neptjournal.com/upload-images/(34)D-1457.pdf
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