Bioaerosol Concentration in a Cattle Feedlot in Neuquén, Argentina

There is a global trend toward intensive livestock breeding, which tends to increase the microbial load in environment as well presence of volatile compounds and dust that can cause health issues. Cattle major producer Escherichiacoli (E. coli), group foodborne bacteria associated with severe human diseases, Neuquén province Argentina has one highest rates uremic hemolytic syndrome incidence world. This paper presents results two sampling events E. coli at 39 sites La Paisana ranch (LPR), Añelo (Neuquén), considering locations inside pens, upwind, downwind feedlot different time steps, using Microflow α equipment. The approximately 600 heads clean controlled installations. field experiment included airborne aerosol deposition concentration passive active methods. Concentrations were also estimated an atmospheric dispersion model. During experiment, counts up 2970 CFU/m3 obtained cattle stockyards 111 distance 100 m.