Development and Field Validation of Low-Cost Metal Oxide Nanosensors for Tropospheric Ozone Monitoring in Rural Areas - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Chemosensors Année : 2022

Development and Field Validation of Low-Cost Metal Oxide Nanosensors for Tropospheric Ozone Monitoring in Rural Areas

Résumé

This work describes the technical features and the performance of two different types of metal-oxide semiconductor sensors, based on ZnO:Ga thin films and SnO2-G nanofibrous layers, for tropospheric ozone monitoring in ambient air. These nanostructures were tested and compared with commercial metal-oxide semiconductor sensors under controlled laboratory conditions and in a field campaign during summer 2021 in Monfragüe National Park (western Spain). The paper also details the design of the electronic device developed for this purpose. A machine learning algorithm based on Support Vector Regression (SVR) allowed the conversion of the resistive values into ozone concentration, which was evaluated afterward. The results showed that the manufactured sensors performed similarly to the commercial sensors in terms of R2 (0.94 and 0.95) and RMSE (5.21 and 4.83 μg·m−3). Moreover, a novel uncertainty calculation based on European guides for air quality sensor testing was conducted, in which the manufactured sensors outperformed the commercial ones.
Fichier principal
Vignette du fichier
chemosensors_10-2022-478.pdf (4.23 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-03864539 , version 1 (21-11-2022)

Identifiants

Citer

Jaime Gómez-Suárez, Patricia Arroyo, María Cerrato-Álvarez, Esther Hontañón, Sergio Masa, et al.. Development and Field Validation of Low-Cost Metal Oxide Nanosensors for Tropospheric Ozone Monitoring in Rural Areas. Chemosensors, 2022, 10 (11), pp.478. ⟨10.3390/chemosensors10110478⟩. ⟨hal-03864539⟩
56 Consultations
32 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More