Low- and Medium-Cost Sensors for Tropospheric Ozone Monitoring—Results of an Evaluation Study in Wrocław, Poland
The paper presents the results of a 1.5-year evaluation study of low- and medium-cost ozone sensors. The tests covered electrochemical sensors: SensoriC O3 3E 1 (City Technology) and semiconductor gas sensors: SM50 OZU (Aeroqual), SP3-61-00 (FIS) and MQ131 (Winsen). Three copies of each sensor were...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-03-01
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| Series: | Atmosphere |
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| Online Access: | https://www.mdpi.com/2073-4433/13/4/542 |
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| author | Marek Badura Piotr Batog Anetta Drzeniecka-Osiadacz Piotr Modzel |
| author_facet | Marek Badura Piotr Batog Anetta Drzeniecka-Osiadacz Piotr Modzel |
| author_sort | Marek Badura |
| collection | DOAJ |
| description | The paper presents the results of a 1.5-year evaluation study of low- and medium-cost ozone sensors. The tests covered electrochemical sensors: SensoriC O3 3E 1 (City Technology) and semiconductor gas sensors: SM50 OZU (Aeroqual), SP3-61-00 (FIS) and MQ131 (Winsen). Three copies of each sensor were enclosed in a measurement box and placed near the reference analyser (MLU 400). In the case of SensoriC O3 3E 1 sensors, the R<sup>2</sup> values for the 1-h data were above 0.90 for the first 9 months of deployment, but a performance deterioration was observed in the subsequent months (R<sup>2</sup> ≈ 0.6), due to sensor ageing processes. High linear relationships were observed for the SM50 devices (R<sup>2</sup> > 0.94), but some periodic data offsets were reported, making regular checking and recalibration necessary. Power-law functions were used in the case of SP3-61-00 (R<sup>2</sup> = 0.6–0.7) and MQ131 (R<sup>2</sup> = 0.4–0.7). Improvements in the fittings were observed for models that included temperature and relative humidity data. In the case of SP3-61-00, the R<sup>2</sup> values increased to above 0.82, while for MQ131 they increased to above 0.86. The study also showed that the measurement uncertainty of tested sensors meets the EU Directive 2008/50/EC requirements for indicative measurements and, in some cases, even for fixed measurements. |
| first_indexed | 2024-03-09T11:10:35Z |
| format | Article |
| id | doaj.art-f1340aa088f34d8d95af9ade57cbd2af |
| institution | Directory Open Access Journal |
| issn | 2073-4433 |
| language | English |
| last_indexed | 2024-03-09T11:10:35Z |
| publishDate | 2022-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Atmosphere |
| spelling | doaj.art-f1340aa088f34d8d95af9ade57cbd2af2023-12-01T00:46:20ZengMDPI AGAtmosphere2073-44332022-03-0113454210.3390/atmos13040542Low- and Medium-Cost Sensors for Tropospheric Ozone Monitoring—Results of an Evaluation Study in Wrocław, PolandMarek Badura0Piotr Batog1Anetta Drzeniecka-Osiadacz2Piotr Modzel3Department of Air Conditioning, Heating, Gas Engineering and Air Protection, Faculty of Environmental Engineering, Wroclaw University of Science and Technology, Norwida 4/6 Str., 50-373 Wrocław, PolandINSYSPOM, Krzywoustego 6-12 Str., 51-165 Wrocław, PolandDepartment of Climatology and Atmosphere Protection, Institute of Geography and Regional Development, University of Wroclaw, Kosiby 8 Str., 51-621 Wrocław, PolandDepartment of Climatology and Atmosphere Protection, Institute of Geography and Regional Development, University of Wroclaw, Kosiby 8 Str., 51-621 Wrocław, PolandThe paper presents the results of a 1.5-year evaluation study of low- and medium-cost ozone sensors. The tests covered electrochemical sensors: SensoriC O3 3E 1 (City Technology) and semiconductor gas sensors: SM50 OZU (Aeroqual), SP3-61-00 (FIS) and MQ131 (Winsen). Three copies of each sensor were enclosed in a measurement box and placed near the reference analyser (MLU 400). In the case of SensoriC O3 3E 1 sensors, the R<sup>2</sup> values for the 1-h data were above 0.90 for the first 9 months of deployment, but a performance deterioration was observed in the subsequent months (R<sup>2</sup> ≈ 0.6), due to sensor ageing processes. High linear relationships were observed for the SM50 devices (R<sup>2</sup> > 0.94), but some periodic data offsets were reported, making regular checking and recalibration necessary. Power-law functions were used in the case of SP3-61-00 (R<sup>2</sup> = 0.6–0.7) and MQ131 (R<sup>2</sup> = 0.4–0.7). Improvements in the fittings were observed for models that included temperature and relative humidity data. In the case of SP3-61-00, the R<sup>2</sup> values increased to above 0.82, while for MQ131 they increased to above 0.86. The study also showed that the measurement uncertainty of tested sensors meets the EU Directive 2008/50/EC requirements for indicative measurements and, in some cases, even for fixed measurements.https://www.mdpi.com/2073-4433/13/4/542air pollutionair-quality monitoringcalibrationmeasurement uncertainty |
| spellingShingle | Marek Badura Piotr Batog Anetta Drzeniecka-Osiadacz Piotr Modzel Low- and Medium-Cost Sensors for Tropospheric Ozone Monitoring—Results of an Evaluation Study in Wrocław, Poland Atmosphere air pollution air-quality monitoring calibration measurement uncertainty |
| title | Low- and Medium-Cost Sensors for Tropospheric Ozone Monitoring—Results of an Evaluation Study in Wrocław, Poland |
| title_full | Low- and Medium-Cost Sensors for Tropospheric Ozone Monitoring—Results of an Evaluation Study in Wrocław, Poland |
| title_fullStr | Low- and Medium-Cost Sensors for Tropospheric Ozone Monitoring—Results of an Evaluation Study in Wrocław, Poland |
| title_full_unstemmed | Low- and Medium-Cost Sensors for Tropospheric Ozone Monitoring—Results of an Evaluation Study in Wrocław, Poland |
| title_short | Low- and Medium-Cost Sensors for Tropospheric Ozone Monitoring—Results of an Evaluation Study in Wrocław, Poland |
| title_sort | low and medium cost sensors for tropospheric ozone monitoring results of an evaluation study in wroclaw poland |
| topic | air pollution air-quality monitoring calibration measurement uncertainty |
| url | https://www.mdpi.com/2073-4433/13/4/542 |
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