viruses ~69%: bacteria ~97% %
||Reche I, D'Orta G, Mladenov N, Winget DM, Suttle CA. Deposition rates of viruses and bacteria above the atmospheric boundary layer. ISME J. 2018 Apr12(4):1154-1162. doi: 10.1038/s41396-017-0042-4. p.1158 left column bottom paragraphPubMed ID29379178
||P.1155 left column 5th paragraph: "Atmospheric deposition sampling and organic components: To obtain the atmospheric samples, [investigators] used two standard passive MTX ARS 1010 automatic deposition collectors. These collectors can discriminate between dry and wet atmospheric deposition using a humidity sensor that activates an aluminum lid that covers or uncovers the dry or wet collector depending on the meteorological conditions. Each collector has an exposed area of 667 cm^2 and is 30 cm in height. The collectors are placed on a metallic structure with 1.1 m legs."
||P.1158 left column bottom paragraph: "Based on what could be detached by washing in buffer and mechanical forces, ~69% of viruses and ~97% of bacteria deposited from the atmosphere were attached to dust or organic aggregates (Fig. 2a, b Table S1). This is consistent with studies showing airborne bacteria are mostly attached to dust [refs 14, 12, 22] or embedded in organic particles [refs 11, 37]."