Bacterial hazards in urban stream irrigation in peri-urban interface of Nairobi-Machakos counties, Kenya

International Journal of Environmental Studies Pub Date : 2023-06-06 DOI:10.1080/00207233.2023.2216605

Arcadius Martinien Agassin Ahogle, N. Korir, P. Houngnandan, Lina Abu-Ghunmi, S. Letema

引用次数: 0

Abstract

Bacterial contamination in fruits and vegetables cultivated in urban and peri-urban areas constitutes a serious public health risk. This paper investigates bacterial contamination in irrigation water of the Nairobi-Machakos counties interface, Kenya. Sixty-six irrigation water samples were tested for total coliforms, Escherichia coli , Shigella spp. Pseudomonas aeruginosa , Enterococcus faecalis , Vibrio cholerae , Salmonella typhi , BOD, COD, and pH. Results shows a high load of bacterial pathogens in all samples except for Salmonella typhi , which tested negative. Based on Kenya's standards and WHO guidelines, the irrigation water samples are unfit for fruit and vegetable irrigation. Urgent and effective measures are required, including regular monitoring, sensitisation, and enforcement of phytosanitary and regulatory measures.

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肯尼亚内罗毕-马查科斯县城郊界面城市水系灌溉中的细菌危害

城市和近郊地区种植的水果和蔬菜中的细菌污染构成了严重的公共健康风险。本文调查了肯尼亚内罗毕-马查科斯县交界处灌溉水中的细菌污染。对66个灌溉水样本进行了总大肠菌群、大肠杆菌、志贺菌的检测。铜绿假单胞菌、粪肠球菌、霍乱弧菌、伤寒沙门氏菌、BOD、COD和pH。结果显示，除伤寒沙门氏杆菌检测呈阴性外，所有样本中的细菌病原体含量都很高。根据肯尼亚的标准和世界卫生组织的指导方针，灌溉用水样本不适合水果和蔬菜灌溉。需要采取紧急有效的措施，包括定期监测、宣传和执行植物检疫和监管措施。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Environmental Studies Social Sciences-Geography, Planning and Development

CiteScore

3.30

自引率

0.00%

发文量

121

期刊介绍： For more than 45 years, the International Journal of Environmental Studies has been pre-eminent in its field. The environment is understood to comprise the natural and the man-made, and their interactions; including such matters as pollution, health effects, analytical methods, political approaches, social impacts etc. Papers favouring an interdisciplinary approach are preferred, because the evidence of more than 45 years appears to be that many intellectual tools and many causes and effects are at issue in any environmental problem - and its solution. This does not mean that a single focus or a narrow view is unwelcome; provided always that the evidence is indicated and the method is robust. Pragmatic decision-making and applicable policies are subjects of interest, together with the problems in establishing facts about dynamic systems where long periods of observation and precise measurement may be difficult to secure. In other words, a systems or holistic approach to the environment and a scientific analysis are complementary, and the distinction between ’hard’ and ’soft’ science is bridged in most of the papers published. These may be on any item in the agenda of environmental science: land, water, food, conservation, population, risk analysis, energy, economics of ecological and non-ecological approaches, social advocacy of arguments for change, legal measures, implications of urbanism, energy choices, waste disposal, recycling, transport systems and other issues of mass society. There is concern also for marginal areas, under-developed societies, minorities, species loss; and indeed no element of the subject of environmental studies, seen in an international and interactive mode, is excluded.