@article{3031655,
    title = "WHO Air Quality Guidelines 2021-Aiming for Healthier Air for all: A
Joint Statement by Medical, Public Health, Scientific Societies and
Patient Representative Organisations",
    author = "Hoffmann, Barbara and Boogaard, Hanna and de Nazelle, Audrey and and Andersen, Zorana J. and Abramson, Michael and Brauer, Michael and and Brunekreef, Bert and Forastiere, Francesco and Huang, Wei and Kan, and Haidong and Kaufman, Joel D. and Katsouyanni, Klea and Krzyzanowski, and Michal and Kuenzli, Nino and Laden, Francine and Nieuwenhuijsen, Mark and and Mustapha, Adetoun and Powell, Pippa and Rice, Mary and Roca-Barcelo, and Aina and Roscoe, Charlotte J. and Soares, Agnes and Straif, Kurt and and Thurston, George",
    journal = "International Journal of Public Health",
    year = "2021",
    volume = "66",
    publisher = "Frontiers Media SA",
    issn = "1661-8556, 1661-8564",
    doi = "10.3389/ijph.2021.1604465",
    keywords = "air pollution; WHO Air Quality Guidelines; health effects; policy
implications; average population exposure"
}