2024 Yes Assessment of personal deposited dose and particle size distribution of bacterial aerosol in kindergarten located in southern Poland https://www.sciencedirect.com/science/article/pii/S0269749123022108?via%3Dihub Brągoszewska, Eva Europe Exposure Elementary (K-5) Bacteria Bacterial aerosol Bioaerosol Exposure dose Kindergarten Microbiological indoor air quality Size distribution Bacterial aerosol doses in kindergartens were higher in autumn. Nose breathing reduced alveolar absorption by 33%. Risk assessments showed hazard indices <1, but high indoor/outdoor ratios suggest children’s and staff’s exposure should be reduced. 2024