Background: Due to the lack of proper rail road and air transportation, most commutes in Iran
are carried out by buses. In most cases, the water in the busses is used for passengers for
drinking usage. Although this kind of water source has provided convince for the travelers, it
could be a great risk in disease outbreak. The aim of this study is to determine the water
quality in commuting buses of Shiraz Karandish terminal in winter 2011. Methods: The study
is of descriptive-cross-sectional type. 48 samples were collected through quota sampling
