Evaluation NO2 Detection Using Low-Cost Folded-Path Photometer
As it impacts both environmental and health conditions, the measurement of nitrogen dioxide (NO2) in industrial and residential areas needs comprehensive and reliable instrumentation providing long-interference-free operation and minimum maintenance and re-calibration. Differential optical absorpti...
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| Format: | Article |
| Language: | English |
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ITB Journal Publisher
2023-08-01
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| Series: | Journal of Mathematical and Fundamental Sciences |
| Subjects: | |
| Online Access: | https://journals.itb.ac.id/index.php/jmfs/article/view/16925 |
| _version_ | 1797762348968050688 |
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| author | Januar Arif Fatkhurrahman Puji Lestari |
| author_facet | Januar Arif Fatkhurrahman Puji Lestari |
| author_sort | Januar Arif Fatkhurrahman |
| collection | DOAJ |
| description |
As it impacts both environmental and health conditions, the measurement of nitrogen dioxide (NO2) in industrial and residential areas needs comprehensive and reliable instrumentation providing long-interference-free operation and minimum maintenance and re-calibration. Differential optical absorption spectroscopy can be used as a direct measurement technique based on the specific absorption characteristics of NO2 following the Beer-Lambert law. This paper proposes a low-cost folded-path photometer to measure NO2 in the air. Cheap tubular acrylic was used as a detection cell with a 3D printed framework, making it compact, modular, and flexible. Evaluation of this differential optical absorption spectroscope (DOAS) was conducted by instrument test responses using NO2 gas. The estimated LOD was ~1263 ppb using a 2-nm resolution of the spectrometer and a 6-meter detection cell length. Deviation of the DOAS was estimated to be 0.8% at high concentration and 2.85% at low concentration based on the calibrated DOAS. Intercomparison of the results was conducted using two different instruments to evaluate the DOAS’s performance by measuring NO2 from motorcycle emissions, which indicated that there was a good correlation between the results. The coefficient correlation (R) was 0.649 for the DOAS- ASTM D1607 Griesz Saltzmann method pairing and 0.846 for the DOAS- electrochemical gas analyzer pairing.
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| first_indexed | 2024-03-12T19:26:02Z |
| format | Article |
| id | doaj.art-c6f43e9874604e06950d195ca74ecd72 |
| institution | Directory Open Access Journal |
| issn | 2337-5760 2338-5510 |
| language | English |
| last_indexed | 2024-03-12T19:26:02Z |
| publishDate | 2023-08-01 |
| publisher | ITB Journal Publisher |
| record_format | Article |
| series | Journal of Mathematical and Fundamental Sciences |
| spelling | doaj.art-c6f43e9874604e06950d195ca74ecd722023-08-02T04:52:42ZengITB Journal PublisherJournal of Mathematical and Fundamental Sciences2337-57602338-55102023-08-0154310.5614/j.math.fund.sci.2023.54.3.5Evaluation NO2 Detection Using Low-Cost Folded-Path PhotometerJanuar Arif Fatkhurrahman0Puji Lestari1Master Degree of Environmental Engineering, Faculty of Civil & Environmental Engineering, Institut Teknologi Bandung, 40132, Bandung, IndonesiaFaculty of Civil and Environmental Engineering, Institut Teknologi Bandung, Jl. Ganesha No.10, Bandung 40132, Indonesia As it impacts both environmental and health conditions, the measurement of nitrogen dioxide (NO2) in industrial and residential areas needs comprehensive and reliable instrumentation providing long-interference-free operation and minimum maintenance and re-calibration. Differential optical absorption spectroscopy can be used as a direct measurement technique based on the specific absorption characteristics of NO2 following the Beer-Lambert law. This paper proposes a low-cost folded-path photometer to measure NO2 in the air. Cheap tubular acrylic was used as a detection cell with a 3D printed framework, making it compact, modular, and flexible. Evaluation of this differential optical absorption spectroscope (DOAS) was conducted by instrument test responses using NO2 gas. The estimated LOD was ~1263 ppb using a 2-nm resolution of the spectrometer and a 6-meter detection cell length. Deviation of the DOAS was estimated to be 0.8% at high concentration and 2.85% at low concentration based on the calibrated DOAS. Intercomparison of the results was conducted using two different instruments to evaluate the DOAS’s performance by measuring NO2 from motorcycle emissions, which indicated that there was a good correlation between the results. The coefficient correlation (R) was 0.649 for the DOAS- ASTM D1607 Griesz Saltzmann method pairing and 0.846 for the DOAS- electrochemical gas analyzer pairing. https://journals.itb.ac.id/index.php/jmfs/article/view/16925DOASintercomparisonnitrogen dioxidephotoabsorptionspectrometer |
| spellingShingle | Januar Arif Fatkhurrahman Puji Lestari Evaluation NO2 Detection Using Low-Cost Folded-Path Photometer Journal of Mathematical and Fundamental Sciences DOAS intercomparison nitrogen dioxide photoabsorption spectrometer |
| title | Evaluation NO2 Detection Using Low-Cost Folded-Path Photometer |
| title_full | Evaluation NO2 Detection Using Low-Cost Folded-Path Photometer |
| title_fullStr | Evaluation NO2 Detection Using Low-Cost Folded-Path Photometer |
| title_full_unstemmed | Evaluation NO2 Detection Using Low-Cost Folded-Path Photometer |
| title_short | Evaluation NO2 Detection Using Low-Cost Folded-Path Photometer |
| title_sort | evaluation no2 detection using low cost folded path photometer |
| topic | DOAS intercomparison nitrogen dioxide photoabsorption spectrometer |
| url | https://journals.itb.ac.id/index.php/jmfs/article/view/16925 |
| work_keys_str_mv | AT januarariffatkhurrahman evaluationno2detectionusinglowcostfoldedpathphotometer AT pujilestari evaluationno2detectionusinglowcostfoldedpathphotometer |