0555442 20230323093116.720220315235959.9 85126294079 000782126200005 10.1016/j.jhazmat.2022.128585 17 s. E cav_un_epca*02571680304-3894432Elsevier Microplastics Microfibers Transport Dispersion Airborne contaminants cav_un_auth*0363740 Evangeliou N. NO cav_un_auth*0267768 Tichý Ondřej UTIA-B Adaptivní systémy Department of Adaptive Systems AS AS Department of Adaptive Systems Ústav teorie informace a automatizace AV ČR, v. v. i. cav_un_auth*0419235 Eckhardt S. NO cav_un_auth*0426751 Groot Zwaaftink Ch. NO cav_un_auth*0376870 Brahney J. US http://library.utia.cas.cz/separaty/2022/AS/tichy-0555442.pdf https://www.sciencedirect.com/science/article/pii/S0304389422003739?via%3Dihub GA20-27939S GA ČR cav_un_auth*0391986 We combine observations from Western USA and inverse modelling to constrain global atmospheric emissions of microplastics (MPs) and microfibers (MFs). The latter are used further to model their global atmospheric dy­namics. Global annual MP emissions were calculated as 9.6 +- 3.6 Tg and MF emissions as 6.5 +- 2.9 Tg. Global average monthly MP concentrations were 47 ng m-3 and 33 ng m-3 for MFs, at maximum. The largest deposition of agricultural MPs occurred close to the world’s largest agricultural regions. Road MPs mostly deposited in the East Coast of USA, Central Europe, and Southeastern Asia, MPs resuspended with mineral dust near Sahara and Middle East. Only 1.8% of the emitted mass of oceanic MPs was transferred to land, and 1.4% of land MPs to ocean, the rest were deposited in the same environment. Previous studies reported that 0.74–1.9 Tg y-1 of land-based atmospheric MPs/MFs (< 5 mm) are transported to the ocean, while riverine transport is between 3.3 and 14 Tg y-1. We calculate that 0.418 +- 0.201 Tg y-1 MPs/MFs (size up to 250 and 2500 μm) were transported from the land to ocean (large particles were ignored). Model validation against observations showed that particle removal must be urgently updated in global models. WOS BB 10000 10500 10509 2023 5 RVO:67985556 http://hdl.handle.net/11104/0330267 1 S 128585 1* Article Engineering Environmental|Environmental Sciences A ENVIRONMENTALSCIENCES|ENGINEERING.ENVIRONMENTAL 12.7 2.7 3.6 0.14903 1.787 208425 2.57 12.800 2262 Q1 95.1 Q1 Q1* 1.93 Q1 96.5 2022 85126294079 SCOPUS PUBMED 000782126200005 WOS cav_un_epca*0257168 Journal of Hazardous Materials 0304-3894 1873-3336 Roč. 432 č. 1 2022 Elsevier