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Bauwens, M. (author), Compernolle, S. (author), Stavrakou, T. (author), Müller, J. F. (author), van Gent, J. (author), Eskes, H. (author), Levelt, Pieternel Felicitas (author), van der A, R. (author), Veefkind, j. Pepijn (author)Spaceborne NO<sub>2</sub> column observations from two high-resolution instruments, Tropospheric Monitoring Instrument (TROPOMI) on board Sentinel-5 Precursor and Ozone Monitoring Instrument (OMI) on Aura, reveal unprecedented NO<sub>2</sub> decreases over China, South Korea, western Europe, and the United States as a result of public health...journal article 2020
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Ding, J. (author), van der A, R.J. (author), Eskes, H.J. (author), Mijling, B. (author), Stavrakou, T. (author), van Geffen, J. H.G.M. (author), Veefkind, j. Pepijn (author)During the COVID-19 lockdown (24 January–20 March) in China low air pollution levels were reported in the media as a consequence of reduced economic and social activities. Quantification of the pollution reduction is not straightforward due to effects of transport, meteorology, and chemistry. We have analyzed the NO<sub>x</sub> emission...journal article 2020
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Hendrick, F. (author), Müller, J.F. (author), Clémer, K. (author), Wang, P. (author), De Maziere, M. (author), Fayt, C. (author), Gielen, C. (author), Hermans, C. (author), Ma, J.Z. (author), Pinardi, G. (author), Stavrakou, T. (author), Vlemmix, T. (author), Van Roozendael, M. (author)Ground-based Multi-Axis Differential Optical Absorption Spectroscopy (MAX-DOAS) measurements of nitrous acid (HONO) and its precursor NO2 (nitrogen dioxide) as well as aerosols have been performed daily in Beijing city centre (39.98° N, 116.38° E) from July 2008 to April 2009 and at the suburban site of Xianghe (39.75° N, 116.96° E) located ~60...journal article 2014