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First 3200 results for ” JHG van Geffen”

  1. Assessing nitrogen dioxide in the Highveld troposphere: Pandora insights and TROPOMI Sentinel-5P evaluation

    Nitrogen oxides, particularly NO2, are emitted through a variety of industrial and transport proc...

    Kai-Sikhakhane, R. F., Scholes, M. C., Piketh, S. J., van Geffen, J., Garland, R. M., Havenga, H. and Scholes, R. J. | Journal: Atmosphere | Volume: 15 | Year: 2024 | First page: 1187 | doi: 10.3390/atmos15101187

    Publication

  2. Natural emissions of VOC and NOx over Africa constrainted by TROPOMI HCHO and NO2 data using the MAGRITTEv1.1 model

    Natural emissions (vegetation, soil, and lightning) are the dominant sources of non-methane bioge...

    Opacka, B., Stavrakou, T., Müller, J.-F., De Smedt, I., van Geffen, J., Marais, E. A., Horner, R. P., Millet, D. B., Wells, K. C. and Guenther, A. B. | Journal: Atmos. Chem. Phys. | Volume: 25 | Year: 2025 | First page: 2863 | Last page: 2894 | doi: 10.5194/acp-25-2863-2025

    Publication

  3. Sunshine is an important determinant of vitamin D status even among high-dose supplement users: secondary analysis of a randomised controlled trial in Crohn's disease patients

    Sunshine is considered to be the most important source of vitamin D. Due to an increased risk of ...

    F O'Sullivan, T Raftery, M van Weele, J van Geffen, D McNamara, C O'Morain, N Mahmud, D Kelly, M Healy, M O'Sullivan, L Zgaga | Status: published | Journal: Photochem. and Photobiol. | Volume: 95 | Year: 2019 | First page: 1060 | Last page: 1067 | doi: 10.1111/php.13086

    Publication

  4. Quantification of nitrogen oxides emissions from build-up of pollution over Paris with TROPOMI

    Nitrogen dioxide (NO2) is a regulated air pollutant that is of particular concern in many cities,...

    A. Lorente, K. F. Boersma, H. J. Eskes, J. P. Veefkind, J. H. G. M. van Geffen, M. B. de Zeeuw, H. A. C. Denier van der Gon, S. Beirle & M. C. Krol | Journal: Scientific Reports | Volume: 9 | Year: 2019 | First page: 20033 | doi: 10.1038/s41598-019-56428-5

    Publication

  5. Influence of convection on the upper-tropospheric O3 and NOx budget in southeastern China

    Thunderstorms can significantly influence the air composition via strong updraft and lightning ni...

    Zhang, X., Yin, Y., van der A, R., Eskes, H., van Geffen, J., Li, Y., Kuang, X., Lapierre, J. L., Chen, K., Zhen, Z., Hu, J., He, C., Chen, J., Shi, R., Zhang, J., Ye, X. and Chen, H. | Journal: Atmospheric Chemistry and Physics | Year: 2022 | doi: https://doi.org/10.5194/acp-22-5925-2022

    Publication