Author/Authors :
Karyab، Hamid نويسنده 1Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran , , Yunesian، Masud نويسنده , , Nasseri، Simin نويسنده 1Department of Environmental Health Engineering, School of Public Health and Institute for Environmental Research, Tehran University of Medical Sciences, Tehran, Iran , , Mahvi، Amir Hosein نويسنده Associate Professor, Department of Environmental Health, Tehran University of Medical Sciences, Tehran, Iran , , Ahmadkhaniha، Reza نويسنده , , Rastkari، Noushin نويسنده , , Nabizadeh، Ramin نويسنده Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran ,
Abstract :
Distribution and seasonal variation of sixteen priority polycyclic aromatic hydrocarbons (PAHs) were investigated in
the drinking water of Tehran, the capital of Iran. Detected single and total PAHs concentrations were in the range
of 2.01-38.96 and 32.45-733.10 ng/L, respectively, which were quite high compared to the values recorded in other
areas of the world. The average occurrence of PAHs with high molecular weights was 79.55%; for example,
chrysene occurred in 60.6% of the samples, with a maximum concentration of 438.96 ng/L. In addition, mean
carcinogen to non-carcinogen PAHs ratio was 63.84. Although the concentration of benzo[a]pyrene, as an indicator
of water pollution to PAHs, was lower than the guideline value proposed by World Health Organization (WHO) as
well as that of Iranian National Drinking Water Standards for all of the samples, the obtained results indicated that
carcinogen PAHs present in the drinking water of Tehran can cause threats to human health.
