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Assessment of the Escherichia coli pollution in drinking water and water sources in Sistan, Iran
INTRODUCTION Water is an essential material for plant life and has a significant role for human and animal health. Water is a critical nutrient substance for livestock and is the most important vital urgent medium for life and is essential for the good health of human beings. In Europe and America, much attention has been paid to the problem of water purity (Fenwick 2006; WHO2008). The people of developing countries are more exposed to water-borne diseases than those in developed countries. An adequate and safe water supply is essential to the production of healthy livestock (Hamner et al.2007; Saravanan et al., 2011). The use of water sources contaminated with human and animal excreta containing pathogenic organisms pose health risks to the population because of increased incidence of zoonotic water-borne diseases (Makoni et al.2004 ; Mohammed 2014). Regardless of the availability of water, minimum quality standards should be considered, depending on the use of the water (human consumption, irrigation, or livestock). Polluted water is an important vehicle for the spread of diseases. Most outbreaks of water-borne diseases are caused by the contamination of drinking water with feces of infected animals or people . Drinking water can be the vector of viral, bacterial and parasitic diseases . Microorganisms are of considerable importance in many aspects of water quality control. Escherichia coli is recommended by the United States Environmental Protection Agency (US EPA) as an indicator organism to screen freshwater systems and is a sensitive criteria of fecal pollution. Detection and enumeration of E. coli in many types of water from different provinces of Iran has been previously reported There is scant information on the microbial quality of water sources in Sistan region, Sistan and Baluchistan State, Iran. The aim of the present study is to investigate fecal E. coli contamination of water sources and drinking water by means of samples collected in Sistan, to assess the public health risks associated with water.
Assessment of the Escherichia coli pollution in drinking water and water sources in Sistan, Iran
Assessment of the Escherichia coli pollution in drinking water and water sources in Sistan, Iran
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WaterTuesday, December 30, 2025