Fecal Contamination in the Wastewater Irrigation System and its Health Threat to Wastewater-Based Farming Households in Addis Ababa, Ethiopia.
Fecal Contamination in the Wastewater Irrigation System and its Health Threat to Wastewater-Based Farming Households in Addis Ababa, Ethiopia.
复制标题
DOI：
10.1177/11786302231181307
复制
发表时间：
2023
影响因子：
2.7
通讯作者：
中科院分区：
文献类型：
--
作者：
由于需求的快速增长，赤木河沿岸的蔬菜产量正在增加。这项研究的目的是检查粪便污染的程度以及粪便污染水平和整个污水灌溉系统的扩散。灌溉水、灌溉土壤和叶类蔬菜在两个蔬菜生长季节内，在生长季节的成熟期，从两条阿卡基河沿岸的19个采样点采集了两次。从所有采样点采集复合样本，并对大肠杆菌进行计数。水源地和非水源地的平均大肠杆菌负荷分别为1.16±5.53cfu/100 m l和2.232±1.292 cfu/100 m l。废水中的所有大肠杆菌计数都超过了世界卫生组织的标准，表明灌溉水质不可接受。污灌土壤和非污灌土壤中E.Coli的平均值分别为3.62±1.582 cfu/g和1.322±87.1cfu/g。生菜和瑞士甜菜上的平均大肠杆菌数分别为78 ± 2 cfu/g和44 ±3 cfu/g。叶类蔬菜上的大肠杆菌计数被发现与废水和土壤中的大肠杆菌有关。使用含有令人无法接受的高水平大肠杆菌和高职业暴露水平的废水生产叶类蔬菜给农业社区和消费者带来了高水平的风险。在食品生产和收获程序或活动期间，多叶的、生长较低的生可食用蔬菜需要仔细处理。
Due to rapidly growing demand, the production of vegetables is increasing along the Akaki Rivers. The objective of this study was to examine the degree of fecal contamination and levels of fecal contamination and dissemination throughout the wastewater irrigation system. Irrigation water, irrigated soil, and leafy vegetables were collected twice during 2 vegetable growing seasons, at the maturity period of the growing season, from 19 sampling points along the 2 Akaki Rivers. Composite samples were taken from all sampling points and E.coli was enumerated. The mean E.coli load in wastewater and non-wastewater sources were 1.16±5.53 CFU/100 ml and 2.232±1.292 CFU/100 ml respectively. All counts of E. coli in the wastewater exceeded the WHO’s standards indicating that the irrigation water quality was unacceptable. In the wastewater-irrigated and non-wastewater-irrigated soil, the mean E.coli were 3.62 ±1.582 CFU/g and 1.322±87.1 CFU/g respectively. Meanwhile, the mean E.coli counts on the lettuce and Swiss chard were 78 ± 2 CFU/g and 44 ±3CFU/g respectively. The E.coli count on the leafy vegetables was found to be associated with the E.coli in the wastewater and soil. The production of leafy vegetables using wastewater with unacceptably high levels of E.coli and high occupational exposure introduces high levels of risk to the farming communities and to the consumers. Leafy, low-growing raw edible vegetables need careful treatment during food production and harvesting procedures or activities.
登录
查看更多内容
影响因子：
4.6
作者：
Abdallah CK;Mourad KA
通讯作者：
Mourad KA
影响因子：
15.8
作者：
Havelaar AH;Kirk MD;Torgerson PR;Gibb HJ;Hald T;Lake RJ;Praet N;Bellinger DC;de Silva NR;Gargouri N;Speybroeck N;Cawthorne A;Mathers C;Stein C;Angulo FJ;Devleesschauwer B;World Health Organization Foodborne Disease Burden Epidemiology Reference Group
通讯作者：
World Health Organization Foodborne Disease Burden Epidemiology Reference Group
影响因子：
3.7
作者：
Alebel A;Tesema C;Temesgen B;Gebrie A;Petrucka P;Kibret GD
通讯作者：
Kibret GD
影响因子：
2
作者：
Islam, M;Doyle, MP;Jiang, XP
通讯作者：
Jiang, XP
影响因子：
3.3
作者：
Ensink, Jeroen H. J.;Mahmood, Tariq;Dalsgaard, Anders
通讯作者：
Dalsgaard, Anders