Arcadius Martinien Agassin Ahogle, N. Korir, P. Houngnandan, Lina Abu-Ghunmi, S. Letema
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Bacterial hazards in urban stream irrigation in peri-urban interface of Nairobi-Machakos counties, Kenya
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.
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.