Now showing items 1-2 of 2

    • Aerosol microdroplets exhibit a stable pH gradient 

      Wei, Haoran; Vejerano, Eric P.; Leng, Weinan; Huang, Qishen; Willner, Marjorie R.; Marr, Linsey C.; Vikesland, Peter J. (2018-07-10)
      Suspended aqueous aerosol droplets (< 50 mu m) are microreactors for many important atmospheric reactions. In droplets and other aquatic environments, pH is arguably the key parameter dictating chemical and biological ...
    • Inward and outward effectiveness of cloth masks, a surgical mask, and a face shield 

      Pan, Jin; Harb, Charbel; Leng, Weinan; Marr, Linsey C. (Virginia Tech, 2020-11-20)
      We evaluated the effectiveness of 11 face coverings for material filtration efficiency, inward protection efficiency on a manikin, and outward protection efficiency on a manikin. At the most penetrating particle size, the ...