%0 Journal Article %A Sadri, Gholamhosein %A Karimpour, Moslem %T The Amount of Nitrate and Nitrite in Hamadan Drinking Water, in 1998. %J Avicenna Journal of Clinical Medicine %V 7 %N 1 %U http://sjh.umsha.ac.ir/article-1-955-en.html %R %D 2000 %K Nitrate/ Nitrite/ Water, %X Nitrate and nitrite in drinking water is harmful for human health, specialy when its amount is more than the standard level.The purpose of this study include measuring concentration of nitrate and nitrite in drinking water of Hamadan city in each season, during one year. In order to compare the seasonal nitrate and nitrite,totally 232 sample were taken from water. The WHO standard methods was used to analysis the nitrate and nitrite concentration in the water . The results showed that concentration of nitrate and nitrite were 17.72 and 0.03 mg/lit respectively, that were not more than standard limit. But the concentration of nitrate in summer was more than others seasons, and the difference was statistically significant (P < 0.05 ) . Finally, at the present time, it can be concluded that, concern with concentration of nitrate and nitrites in drinking water of Hamadan, is healthy. %> http://sjh.umsha.ac.ir/article-1-955-en. %P 0-0 %& 0 %! %9 Original %L A-11-368-20 %+ %G eng %@ 2588-722X %[ 2000