Microbial and Physicochemical Assessment of Drinking Water Supplied by Sanandaj Coaches in 2014

Document Type : Original Article

Authors

1 Student Research Committee, Kurdistan University of Medical Sciences, Sanandaj, Iran.

2 MSc of MSPH, Kurdistan University of Medical Sciences, Sanandaj, Iran.

3 Biostatistics department, School of public health. Iran University of Medical Sciences, Tehran, Iran

Abstract

Background & Aims: Due to lack of railway infrastructure and the high cost of air travels, the main way of travelling around country for people living in Sanandaj is using coaches. Coaches supply drinking water through an installed cold water storage. The hygiene of these water storages is unknown. The aim of this study was the microbial and physicochemical assessment of the water storages used by long-distance intercity coaches operated from Sanandaj in 2014.
 
Materials & Methods: This study was a descriptive-cross-sectional study in which specimen were collected from drinking water tank of coaches operated from suburban bus terminal in Sanandaj. Microbial and physicochemical procedures and experiments (total coliform and fecal coliform, turbidity, residual chlorine, pH and temperature) were in accordance to the standard methods for water and wastewater experiments. Data analysis was performed with SPSS software version 21 using descriptive statistics.
 
Results: The results showed that 12 % of total coliform and 3.4 % of fecal coliform were positive. The turbidity at 83% of the samples were less than 1 and at 17% of samples were over 1. The amount of free chlorine residue was zero. Temperature of samples were between 8 and12°C; pH were between 7 and 8.
 
Conclusion: Training of coaches’ crew is recommended to ensure hygiene of storage water tanks are maintained at acceptable level.

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