Wastewater-irrigated vegetables: market handling versus irrigation water quality
Wastewater-irrigated vegetables: market handling versus irrigation water quality
复制标题
DOI：
10.1111/j.1365-3156.2007.01935.x
复制
发表时间：
2007-12-01
影响因子：
3.3
通讯作者：
Dalsgaard, Anders
中科院分区：
文献类型：
--
作者：
Ensink, Jeroen H. J.;Mahmood, Tariq;Dalsgaard, Anders
目的和方法 在巴基斯坦费萨拉巴德，用未经处理的生活废水灌溉的蔬菜在收获时进行了粪便指示物、大肠杆菌和蠕虫卵的分析。大约12小时后，从当地市场收集同一批次的蔬菜。 结果 调查发现，从农田收集的蔬菜中大肠杆菌浓度相对较低（每克1.9个大肠杆菌），但蠕虫浓度相对较高（每克0.7个虫卵）。从市场上收集的蔬菜中检出了较高浓度的大肠杆菌（每克 14.3 个大肠杆菌）和蠕虫（每克 2.1 个虫卵）。 结论 调查结果表明，不卫生的采后处理是农产品污染的主要来源。市场干预措施，例如提供清洁水来清洗农产品，是保护公众健康的更好方法，并且比废水处理更具成本效益。
Objective and Methods Vegetables irrigated with untreated domestic wastewater were, at the time of harvest, analysed for the presence of the faecal indicator, Escherichia coli, and helminth eggs in Faisalabad, Pakistan. Vegetables from the same harvested batch were collected approximately 12 h later from the local market.Results The survey found relatively low concentrations of E. coli (1.9 E. coli per gram), but relatively high concentrations of helminths (0.7 eggs per gram) on vegetables collected from agricultural fields. Higher concentration of both E. coli (14.3 E. coli per gram) and helminths (2.1 eggs per gram) were recovered from the vegetables collected from the market.Conclusions The results of the survey suggest that unhygienic post harvest handling was the major source of produce contamination. Interventions at the market, such as the provision of clean water to wash produce in, are better ways to protect public health and more cost effective than wastewater treatment.