Airborne transmission of pathogen-laden expiratory droplets in open outdoor space Yang, Xia ; Yang, Hongyu ; Ou, Cuiyun ; Luo, Zhiwen ; Hang, Jian Abstract Publication: Science of the Total Environment Pub Date: June 2021 DOI: 10.1016/j.scitotenv.2021.145537 Bibcode: 2021ScTEn.77345537Y