Survey of nitrate and nitrite concentrations in villages of Sari well-waters
Subject Areas :M.A Zezoli 1 , اسمعیل GHahremani 2 , مهدی GHorbanian 3 , پگاه Bahmani 4 , کبری Zabih zadeh 5
1 - عضو هیئت علمی دانشگاه علوم پزشکی مازندران
2 - دانشجوی کارشناسی ارشد دانشگاه علوم پزشکی مازندران
3 - دانشجوی کارشناسی ارشد دانشگاه علوم پزشکی مازندران
4 - دانشجوی کارشناسی ارشد دانشگاه علوم پزشکی ایران
5 - کارشناس آزمایشگاه آب و فاضلاب روستایی شهرستان ساری
Keywords: Nitrate, Sari, Nitrite,
Abstract :
Due to carcinogenic and other hazardous effects of nitrate and nitrite this study has been done. TheObjective of this study was survey of nitrate and nitrite concentration at well-waters in villages of Saricity in 2008-2009 and comparison them with standard levels.In this study, 152 water samples from 38 rural well-water supply facilities in each year have beensurveyed. Nitrate and nitrite ions concentration were determined by DR-5000 spectrophotometer andthen results have been analyzed by descriptive and analytical statistical methods using SPSS 16.Result showed nitrate and nitrite average concentrations respectively were 1.42 ± 0.571 and 0.004 ±0.00141 mg/L in 1386 and their average concentrations were 1.24 ± 0.461 and 0.0081 ±0.0072 mg/Lin 1387 respectively.Nitrate and nitrite average concentrations in the experimented samples were less than recommendedpermissible concentration level of WHO and water quality standard of Iran (10 and 1 mg/Lrespectively) and had no hygienic threat in region, But wastewater disposal in seepage wells maycause increase of nitrate and nitrite concentrations in the future.