用于农产品灌溉的水中的粪便污染指标、沙门氏菌、弧菌和气单胞菌。
Faecal contamination indicators, Salmonella, Vibrio and Aeromonas in water used for the irrigation of agricultural products.
作者信息
Pianietti A, Sabatini L, Bruscolini F, Chiaverini F, Cecchetti G
机构信息
Institute of Toxicological, Hygienic and Environmental Sciences, University of Urbino, Italy.
出版信息
Epidemiol Infect. 2004 Apr;132(2):231-8. doi: 10.1017/s095026880300181x.
The faecal contamination indicators (total coliforms, faecal coliforms, Escherichia coli, enterococci) and the genera Salmonella, Vibrio, Aeromonas were investigated in water samples used for irrigation. During 4 months, 52 samples were taken. The methods used were: multiple tube fermentation method for faecal contamination indicators and membrane filtration techniques for salmonella, aeromonas and vibrio. Two samples were positive for Salmonella spp., fourteen for Aeromonas spp. and no samples for Vibrio spp. No correlation was found between aeromonas and the indicators of faecal contamination. Regarding Aeromonas spp., 21.6% of the strains were adhesive and 12.6% cytotoxic: this confirms the possible role of aeromonas in human pathologies. These results are important to determine the quality of irrigation water in relation to human health. In fact, the spray or sprinkler irrigation produces bioaerosol, which can contaminate the crops that are likely to be eaten uncooked. In addition, the flood or furrow irrigation represents a risk to field workers.
对用于灌溉的水样中的粪便污染指标（总大肠菌群、粪大肠菌群、大肠杆菌、肠球菌）以及沙门氏菌属、弧菌属、气单胞菌属进行了调查。在4个月期间，采集了52个样本。使用的方法为：粪便污染指标采用多管发酵法，沙门氏菌、气单胞菌和弧菌采用膜过滤技术。有两个样本沙门氏菌属呈阳性，14个样本气单胞菌属呈阳性，弧菌属无阳性样本。气单胞菌与粪便污染指标之间未发现相关性。关于气单胞菌属，21.6%的菌株具有黏附性，12.6%具有细胞毒性：这证实了气单胞菌在人类病理学中的可能作用。这些结果对于确定与人类健康相关的灌溉水质量很重要。事实上，喷灌或滴灌会产生生物气溶胶，可能污染可能生食的作物。此外，漫灌或沟灌对田间工人构成风险。
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