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Reliability of lower-cost sensors in the analysis of indoor air quality on board ships
Schalm, O.; Carro, G.; Lazarov, B.; Jacobs, W.; Stranger, M. (2022). Reliability of lower-cost sensors in the analysis of indoor air quality on board ships. Atmosphere 13(10): 1579. https://dx.doi.org/10.3390/atmos13101579
In: Atmosphere. MDPI AG: Basel. e-ISSN 2073-4433
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| Author keywords |
indoor air quality (IAQ); ship; vessel; pollutants; temporal trends; sensors |
| Auteurs | | Top |
- Schalm, O.
- Carro, G.
- Lazarov, B.
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| Abstract |
Air quality in and around ships is governed by a variety of pollution sources that are unique for the shipping context. This makes the living and working conditions on ships substantially different from situations in cities or inside buildings. To gain insight into these differences, information about trends and absolute pollutant amounts on board ships is needed. However, the installation of reference instruments to monitor NO2, NO, O3, particulate matter and other environmental parameters is often not possible because of their size, weight or because of safety reasons. For that reason, more compact devices incorporating a variety of sensors are a good alternative. However, the use of such sensors is only possible when their behaviour and performance in a shipping context are well understood. To study this context, we were allowed to compare sensor-based measurements performed on a 36-year old ship dedicated to near shore operations with measurements of reference-grade instruments. Additional behavioural information of sensors is obtained by measuring campaigns organized on several inland ships. This contribution demonstrates that trends registered by gas and particulate matter sensors are reliable but that insufficient detection limits, higher noise, imperfect calibration and sensor errors result in some reliability constraints. |
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