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Contamination Status of Salmonella spp., Shigella spp. and Campylobacter spp. in Surface and Groundwater of the Kelani River Basin, Sri Lanka
Water ( IF 3.4 ) Pub Date : 2020-08-04 , DOI: 10.3390/w12082187
M.G.Y.L. Mahagamage , M.V.S.C. Pathirage , Pathmalal M. Manage

Waterborne diseases are a global problem that causes more than 2.2 million deaths annually. Therefore, the present study was focused on microbiological contamination of both ground and surface water by means of total coliform, Escherichia coli (E. coli), Salmonella spp., Shigella spp. and Campylobacter spp. Seventy two groundwater and 45 surface water sampling locations were selected to collect water from the head, transitional and meandering regions of the Kelani River Basin for a period of one year (both dry and wet seasons). The results of the study revealed that the entire Kelani River basin was contaminated with total coliform and E. coli bacteria and almost all the sampling locations exceed Sri Lanka Standards Institute (SLSI) guideline value given for drinking water (0 CFU/100 mL). Further, in groundwater, 17 locations were positive for Salmonella spp., whereas only 2 locations were positive for Campylobacter spp. In surface water, 26 and three sampling locations were positive for Salmonella spp. and Campylobacter spp., respectively. In this study, 23 different human pathogenic serovars were isolated and the Salmonella enterica serovar Kentucky was identified as the commonest type. Thus, the result of the study revealed that the consumption of raw water from the Kelani River Basin is unsafe and possible to cause gastrointestinal diseases.

中文翻译:

沙门氏菌属、志贺氏菌属的污染状况。和弯曲杆菌属。斯里兰卡克拉尼河流域地表水和地下水

水传播疾病是一个全球性问题,每年导致超过 220 万人死亡。因此,本研究的重点是通过总大肠菌群、大肠杆菌(大肠杆菌)、沙门氏菌属、志贺氏菌属对地下水和地表水的微生物污染。和弯曲杆菌属。选取72个地下水采样点和45个地表水采样点,从克拉尼河流域的源头、过渡和蜿蜒地区采集水,为期一年(旱季和雨季)。研究结果显示,整个克拉尼河流域都受到大肠菌群和大肠杆菌的污染,几乎所有采样地点都超过了斯里兰卡标准协会 (SLSI) 为饮用水提供的指导值 (0 CFU/100 毫升)。此外,在地下水中,17 个地点对沙门氏菌呈阳性,而只有 2 个地点对弯曲杆菌呈阳性。在地表水中,有 26 个和 3 个采样点沙门氏菌呈阳性。和弯曲杆菌属。在这项研究中,分离出 23 种不同的人类致病血清型,其中最常见的类型是肠沙门氏菌血清型 Kentucky。因此,研究结果显示,饮用来自克拉尼河流域的原水是不安全的,并可能导致肠胃疾病。分离出 23 种不同的人类致病血清型,其中肠沙门氏菌血清型 Kentucky 被确定为最常见的类型。因此,研究结果显示,饮用来自克拉尼河流域的原水是不安全的,并可能导致肠胃疾病。分离出 23 种不同的人类致病血清型,其中肠沙门氏菌血清型 Kentucky 被确定为最常见的类型。因此,研究结果显示,饮用来自克拉尼河流域的原水是不安全的,并可能导致肠胃疾病。
更新日期:2020-08-04
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