Enhancing the Reliability of NO[sub.2] Monitoring Using Low-Cost Sensors by Compensating for Temperature and Humidity Effects
The study investigates methods to enhance the reliability of NO[sub.2] monitoring using low-cost electrochemical sensors to measure gaseous pollutants in air by addressing the impacts of temperature and relative humidity. The temperature within a plastic container was controlled using an internal mi...
Gespeichert in:
Veröffentlicht in: | Atmosphere 2024-11, Vol.15 (11) |
---|---|
Hauptverfasser: | , , , , , , |
Format: | Artikel |
Sprache: | eng |
Schlagworte: | |
Online-Zugang: | Volltext |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
container_end_page | |
---|---|
container_issue | 11 |
container_start_page | |
container_title | Atmosphere |
container_volume | 15 |
creator | Alejo Sánchez, Daniellys Schalm, Olivier Álvarez Cruz, Arianna Hernández Rodríguez, Erik Martínez Laguardia, Alain Kairuz Cabrera, David Morales Pérez, Mayra C |
description | The study investigates methods to enhance the reliability of NO[sub.2] monitoring using low-cost electrochemical sensors to measure gaseous pollutants in air by addressing the impacts of temperature and relative humidity. The temperature within a plastic container was controlled using an internal mica heater, an external hot air blower, or cooling packs, while relative humidity was adjusted using glycerine solutions. Findings indicated that the auxiliary electrode signal is susceptible to temperature and moderately affected by relative humidity. In contrast, the working electrode signal is less affected by temperature and relative humidity; however, adjustments are still required to determine gas concentrations accurately. Tests involving on/off cycles showed that the auxiliary electrode signal experiences exponential decay before stabilizing, requiring the exclusion of initial readings during monitoring activities. Additionally, calibration experiments in zero air allowed the determination of the compensation factor nT across different temperatures and humidity levels. These results highlight the importance of compensating for temperature and humidity effects to improve the accuracy and reliability of NO[sub.2] measurements using low-cost electrochemical sensors. This refinement makes the calibration applicable across a broader range of environmental conditions. However, the experiments also show a lack of repeatability in the zero air calibration. |
doi_str_mv | 10.3390/atmos15111365 |
format | Article |
fullrecord | <record><control><sourceid>gale</sourceid><recordid>TN_cdi_gale_infotracacademiconefile_A818101874</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><galeid>A818101874</galeid><sourcerecordid>A818101874</sourcerecordid><originalsourceid>FETCH-gale_infotracacademiconefile_A8181018743</originalsourceid><addsrcrecordid>eNqVTMFKxDAQDaLg4u7R-_xAa9Jk3e5RSmUPuoLunkQkbSe7kTYjSYrswX83BQ9enYH33jzeG8auBc-lXPMbHQcKYimEkLfLMzYr-EpmSkl5_kdfskUIHzyNWstCqhn7rt1Ru9a6A8QjwjP2Vje2t_EEZGD79BrGJi_e4JGcjeSn3D5M-EBfWUUhwgu6QD5Ac4KKhs906TgFDHnYYTK8jqNH0K6DzTjYbvpdG4NtDHN2YXQfcPHLVyy_r3fVJjvoHt-tMxS9btN2ONiWHBqb_LtSlIKLcqXkvws_RDZepA</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype></control><display><type>article</type><title>Enhancing the Reliability of NO[sub.2] Monitoring Using Low-Cost Sensors by Compensating for Temperature and Humidity Effects</title><source>DOAJ Directory of Open Access Journals</source><source>MDPI - Multidisciplinary Digital Publishing Institute</source><source>EZB-FREE-00999 freely available EZB journals</source><creator>Alejo Sánchez, Daniellys ; Schalm, Olivier ; Álvarez Cruz, Arianna ; Hernández Rodríguez, Erik ; Martínez Laguardia, Alain ; Kairuz Cabrera, David ; Morales Pérez, Mayra C</creator><creatorcontrib>Alejo Sánchez, Daniellys ; Schalm, Olivier ; Álvarez Cruz, Arianna ; Hernández Rodríguez, Erik ; Martínez Laguardia, Alain ; Kairuz Cabrera, David ; Morales Pérez, Mayra C</creatorcontrib><description>The study investigates methods to enhance the reliability of NO[sub.2] monitoring using low-cost electrochemical sensors to measure gaseous pollutants in air by addressing the impacts of temperature and relative humidity. The temperature within a plastic container was controlled using an internal mica heater, an external hot air blower, or cooling packs, while relative humidity was adjusted using glycerine solutions. Findings indicated that the auxiliary electrode signal is susceptible to temperature and moderately affected by relative humidity. In contrast, the working electrode signal is less affected by temperature and relative humidity; however, adjustments are still required to determine gas concentrations accurately. Tests involving on/off cycles showed that the auxiliary electrode signal experiences exponential decay before stabilizing, requiring the exclusion of initial readings during monitoring activities. Additionally, calibration experiments in zero air allowed the determination of the compensation factor nT across different temperatures and humidity levels. These results highlight the importance of compensating for temperature and humidity effects to improve the accuracy and reliability of NO[sub.2] measurements using low-cost electrochemical sensors. This refinement makes the calibration applicable across a broader range of environmental conditions. However, the experiments also show a lack of repeatability in the zero air calibration.</description><identifier>ISSN: 2073-4433</identifier><identifier>EISSN: 2073-4433</identifier><identifier>DOI: 10.3390/atmos15111365</identifier><language>eng</language><publisher>MDPI AG</publisher><subject>Economic aspects ; Environmental quality ; Glycerin ; Glycerol ; Measuring instruments ; Sensors</subject><ispartof>Atmosphere, 2024-11, Vol.15 (11)</ispartof><rights>COPYRIGHT 2024 MDPI AG</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,864,27924,27925</link.rule.ids></links><search><creatorcontrib>Alejo Sánchez, Daniellys</creatorcontrib><creatorcontrib>Schalm, Olivier</creatorcontrib><creatorcontrib>Álvarez Cruz, Arianna</creatorcontrib><creatorcontrib>Hernández Rodríguez, Erik</creatorcontrib><creatorcontrib>Martínez Laguardia, Alain</creatorcontrib><creatorcontrib>Kairuz Cabrera, David</creatorcontrib><creatorcontrib>Morales Pérez, Mayra C</creatorcontrib><title>Enhancing the Reliability of NO[sub.2] Monitoring Using Low-Cost Sensors by Compensating for Temperature and Humidity Effects</title><title>Atmosphere</title><description>The study investigates methods to enhance the reliability of NO[sub.2] monitoring using low-cost electrochemical sensors to measure gaseous pollutants in air by addressing the impacts of temperature and relative humidity. The temperature within a plastic container was controlled using an internal mica heater, an external hot air blower, or cooling packs, while relative humidity was adjusted using glycerine solutions. Findings indicated that the auxiliary electrode signal is susceptible to temperature and moderately affected by relative humidity. In contrast, the working electrode signal is less affected by temperature and relative humidity; however, adjustments are still required to determine gas concentrations accurately. Tests involving on/off cycles showed that the auxiliary electrode signal experiences exponential decay before stabilizing, requiring the exclusion of initial readings during monitoring activities. Additionally, calibration experiments in zero air allowed the determination of the compensation factor nT across different temperatures and humidity levels. These results highlight the importance of compensating for temperature and humidity effects to improve the accuracy and reliability of NO[sub.2] measurements using low-cost electrochemical sensors. This refinement makes the calibration applicable across a broader range of environmental conditions. However, the experiments also show a lack of repeatability in the zero air calibration.</description><subject>Economic aspects</subject><subject>Environmental quality</subject><subject>Glycerin</subject><subject>Glycerol</subject><subject>Measuring instruments</subject><subject>Sensors</subject><issn>2073-4433</issn><issn>2073-4433</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><sourceid/><recordid>eNqVTMFKxDAQDaLg4u7R-_xAa9Jk3e5RSmUPuoLunkQkbSe7kTYjSYrswX83BQ9enYH33jzeG8auBc-lXPMbHQcKYimEkLfLMzYr-EpmSkl5_kdfskUIHzyNWstCqhn7rt1Ru9a6A8QjwjP2Vje2t_EEZGD79BrGJi_e4JGcjeSn3D5M-EBfWUUhwgu6QD5Ac4KKhs906TgFDHnYYTK8jqNH0K6DzTjYbvpdG4NtDHN2YXQfcPHLVyy_r3fVJjvoHt-tMxS9btN2ONiWHBqb_LtSlIKLcqXkvws_RDZepA</recordid><startdate>20241101</startdate><enddate>20241101</enddate><creator>Alejo Sánchez, Daniellys</creator><creator>Schalm, Olivier</creator><creator>Álvarez Cruz, Arianna</creator><creator>Hernández Rodríguez, Erik</creator><creator>Martínez Laguardia, Alain</creator><creator>Kairuz Cabrera, David</creator><creator>Morales Pérez, Mayra C</creator><general>MDPI AG</general><scope/></search><sort><creationdate>20241101</creationdate><title>Enhancing the Reliability of NO[sub.2] Monitoring Using Low-Cost Sensors by Compensating for Temperature and Humidity Effects</title><author>Alejo Sánchez, Daniellys ; Schalm, Olivier ; Álvarez Cruz, Arianna ; Hernández Rodríguez, Erik ; Martínez Laguardia, Alain ; Kairuz Cabrera, David ; Morales Pérez, Mayra C</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-gale_infotracacademiconefile_A8181018743</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2024</creationdate><topic>Economic aspects</topic><topic>Environmental quality</topic><topic>Glycerin</topic><topic>Glycerol</topic><topic>Measuring instruments</topic><topic>Sensors</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Alejo Sánchez, Daniellys</creatorcontrib><creatorcontrib>Schalm, Olivier</creatorcontrib><creatorcontrib>Álvarez Cruz, Arianna</creatorcontrib><creatorcontrib>Hernández Rodríguez, Erik</creatorcontrib><creatorcontrib>Martínez Laguardia, Alain</creatorcontrib><creatorcontrib>Kairuz Cabrera, David</creatorcontrib><creatorcontrib>Morales Pérez, Mayra C</creatorcontrib><jtitle>Atmosphere</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Alejo Sánchez, Daniellys</au><au>Schalm, Olivier</au><au>Álvarez Cruz, Arianna</au><au>Hernández Rodríguez, Erik</au><au>Martínez Laguardia, Alain</au><au>Kairuz Cabrera, David</au><au>Morales Pérez, Mayra C</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Enhancing the Reliability of NO[sub.2] Monitoring Using Low-Cost Sensors by Compensating for Temperature and Humidity Effects</atitle><jtitle>Atmosphere</jtitle><date>2024-11-01</date><risdate>2024</risdate><volume>15</volume><issue>11</issue><issn>2073-4433</issn><eissn>2073-4433</eissn><abstract>The study investigates methods to enhance the reliability of NO[sub.2] monitoring using low-cost electrochemical sensors to measure gaseous pollutants in air by addressing the impacts of temperature and relative humidity. The temperature within a plastic container was controlled using an internal mica heater, an external hot air blower, or cooling packs, while relative humidity was adjusted using glycerine solutions. Findings indicated that the auxiliary electrode signal is susceptible to temperature and moderately affected by relative humidity. In contrast, the working electrode signal is less affected by temperature and relative humidity; however, adjustments are still required to determine gas concentrations accurately. Tests involving on/off cycles showed that the auxiliary electrode signal experiences exponential decay before stabilizing, requiring the exclusion of initial readings during monitoring activities. Additionally, calibration experiments in zero air allowed the determination of the compensation factor nT across different temperatures and humidity levels. These results highlight the importance of compensating for temperature and humidity effects to improve the accuracy and reliability of NO[sub.2] measurements using low-cost electrochemical sensors. This refinement makes the calibration applicable across a broader range of environmental conditions. However, the experiments also show a lack of repeatability in the zero air calibration.</abstract><pub>MDPI AG</pub><doi>10.3390/atmos15111365</doi></addata></record> |
fulltext | fulltext |
identifier | ISSN: 2073-4433 |
ispartof | Atmosphere, 2024-11, Vol.15 (11) |
issn | 2073-4433 2073-4433 |
language | eng |
recordid | cdi_gale_infotracacademiconefile_A818101874 |
source | DOAJ Directory of Open Access Journals; MDPI - Multidisciplinary Digital Publishing Institute; EZB-FREE-00999 freely available EZB journals |
subjects | Economic aspects Environmental quality Glycerin Glycerol Measuring instruments Sensors |
title | Enhancing the Reliability of NO[sub.2] Monitoring Using Low-Cost Sensors by Compensating for Temperature and Humidity Effects |
url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-23T17%3A03%3A12IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-gale&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Enhancing%20the%20Reliability%20of%20NO%5Bsub.2%5D%20Monitoring%20Using%20Low-Cost%20Sensors%20by%20Compensating%20for%20Temperature%20and%20Humidity%20Effects&rft.jtitle=Atmosphere&rft.au=Alejo%20S%C3%A1nchez,%20Daniellys&rft.date=2024-11-01&rft.volume=15&rft.issue=11&rft.issn=2073-4433&rft.eissn=2073-4433&rft_id=info:doi/10.3390/atmos15111365&rft_dat=%3Cgale%3EA818101874%3C/gale%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rft_galeid=A818101874&rfr_iscdi=true |