RESUMO
Survey for Ismailia Canal fresh water indicated normal conditions for physico-chemical parameters. Total dissolved solids and all cations and anions were within the acceptable limits. The concentration of n-alkanes, aromatic hydrocarbons, polycyclic aromatic hydrocarbons [PAHs] and chlorinated hydrocarbons were detected in three sites. Site 1 [intake of Mostorod drinking water treatment plant], Site 2 [after oil companies], and site 3 in the middle of the canal. Site 2 had the highest concentrations of the studied hydrocarbons due to drainage of the oil from oil companies and discharge of the industrial waste from other companies into the canal water. The concentrations of organic compounds were decreased after that due to dilution. The concentration of chlorinated hydrocarbons was too much lower than that of n-alkanes, aromatic hydrocarbons and PAHs