Publikasjoner

Accurate Lightweight Calibration Methods for Mobile Low-Cost Particulate Matter Sensors

Jørstad, Per Martin; Wojcikowski, Marek; Cao, Tuan-Vu; Lepioufle, Jean-Marie; Wojtkiewicz, Krystian; Ha, Hoai Phuong

<p>Monitoring air pollution is a critical step towards improving public health, particularly when it comes to identifying the primary air pollutants that can have an impact on human health. Among these pollutants, particulate matter (PM) with a diameter of up to 2.5 μm (or PM2.5) is of particular concern, making it important to continuously and accurately monitor pollution related to PM. The emergence of mobile low-cost PM sensors has made it possible to monitor PM levels continuously in a greater number of locations. However, the accuracy of mobile low-cost PM sensors is often questionable as it depends on geographical factors such as local atmospheric conditions. <p>This paper presents new calibration methods for mobile low-cost PM sensors that can correct inaccurate measurements from the sensors in real-time. Our new methods leverage Neural Architecture Search (NAS) to improve the accuracy and efficiency of calibration models for mobile low-cost PM sensors. The experimental evaluation shows that the new methods reduce accuracy error by more than 26% compared with the state-of-the-art methods. Moreover, the new methods are lightweight, taking less than 2.5 ms to correct each PM measurement on Intel Neural Compute Stick 2, an AI-accelerator for edge devices deployed in air pollution monitoring platforms.

Accurate Measurements of Hydrocarbons in the Atmosphere (AMOHA): Three European intercomparisons.

Slemr, J.; Slemr, F.; Partridge, R.; D'Souza, H.; Schmidbauer, N.

Achievements of three year aerosol_cci work. NILU F

Holzer-Popp, T.; de Leeuw, G.; Bingen, C.; Fischer, J.; Kinne, S.; North, P.; Poulson, C.; Ramon, D.; Schulz, M.; Stebel, K.; Tanre, D.; Thomas, G.; Veefkind, P.; Vountas, M.; Zieger, P.; Pinnock, S.

Acid deposition and related effects in China: results from the IMPACTS integrated monitoring program.

Tang, D.; Larssen, T.; Shao, M.; Zhang, X.; Duan, L.; Yanhui, W.; He, S.; Zhao, D.; Xiang, R.; Xiao, J.; Luo, J.; Aas, W.; Vogt, R.D.; Seip, H.M.; Lydersen, E.; Eilertsen, O.; Liu, H.; Gao, J.; Økland, T.; Solberg, S.; Angell, V.; Mulder, J.

Acidification in China: Assessment based on studies at forested sites from Chongqing to Guangzhou.

Seip, H.M.; Aasgaard, P.; Angell, V.; Eilertsen, O.; Larssen, T.; Lydersen, E.; Mulder, J.; Muniz, I.P.; Semb, A.; Tang, D.G.; Vogt, R.D.; Xiao, J.S.; Xiong, J.L.; Zhao, D.W.; Kong, G.H.

Acidification of lakes and forest soils.

Fowler, D.; Wright, D.; de Wit, H.; Tørseth, K.; Mareckova, K.; LeGall, A.-C.; Rabago, I.; Hettelingh, J.-P.; Tidblad, J.; Fagerli, H.; Grennfelt, P.; Almodovar, P.; Scavo, K.; Haeuber, R.; Lynch, J.; Funk, C.; Kerr, K.; Berton, E.; Pritula, D.; Reiss, I.

Actinic flux determination from measurements of irradiance.

Kylling, A.; Webb, A.R.; Bais, A.F.; Blumthaler, M.,Scmitt, R.; Thiel, S.; Kazantzidis, A.; Kift, R.; Misslbeck M.; Schallart, B.; Schreder, J.; Topaloglou, C.

Active learning for a better school environment - a Norwegian pilot project. NILU PP

Innset, B.; Sandås, A.

Activities on seasonal-to-decadal prediction in Norway.

Orsolini, Y.

ACTRIS - Aerosols, Clouds and Trace gases Research InfraStructure and access to ACTRIS Data: http://actris.nilu.no/ NILU F

Myhre, C.L.; Pappalardo, G.; Laj, P.

ACTRIS - Aerosols, Clouds and Trace gases Research InfraStructure and access to ACTRIS Data: http://actris.nilu.no/ NILU PP

Myhre, C.L.; Pappalardo, G.; Laj, P.

ACTRIS – Towards a global research infrastructure

Myhre, Cathrine Lund; Saponaro, Giulia; Laj, Paolo G.; Juurola, Eija