The air-borne distribution of zoonotic agents from livestock waste spreading and microbiological risk to fresh produce from contaminated irrigation sources

摘要: Aims:  To assess the risks of zoonotic agents in dissemination livestock wastes into environment by airborne distribution. subsequently survival time agents, introduced irrigation water, on phylloplane produce. Methods and Results:  An Escherichia coli marker was pig slurry which spread using a rain gun sprayer. Air sampling undertaken to determine distance reached marker. No recoveries were observed at 250 m. Borehole contaminated with used irrigate field plots sown lettuce spinach. Decline bacterial numbers time. After initial rapid decreases, we unable detect any pathogen from phylloplane, 1 month after contamination. Conclusions:  These preliminary results suggest that public health aerosolized bacteria during spreading are low. Although, crop phylloplanes perish quickly, overhead fresh produce 3 weeks before harvest should still be considered. Significance Impact Study:  improve our understanding fate environment. Spreading liquid an mechanism may not pose significant risk. Detection contamination spinach means consideration given farmers until harvest, when irrigating water have been directly or indirectly wastes.