19 مرداد 1399
امين ترنجيان

امین ترنجیان

مرتبه علمی: استادیار
نشانی: ملایر، دانشگاه ملی ملایر، دانشکده کشاورزی
تحصیلات: دکترای تخصصی / مهندسی منابع آب
تلفن: 08133339841- داخلی 493
دانشکده: کشاورزی

مشخصات پژوهش

عنوان
Evaluation of statistical distributions to analyze the pollution of Cd and Pb in urban runoff
نوع پژوهش مقاله چاپ شده
کلیدواژه‌ها
goodness of fit, heavy metal, probability distribution function, urban runoff
سال
2016
مجله Water Science and Technology'
پژوهشگران امین ترنجیان

چکیده

Heavy metal pollution in urban runoff causes severe environmental damage. Identification of these pollutants and their statistical analysis is necessary to provide management guidelines. In this study, 45 continuous probability distribution functions were selected to fit the Cd and Pb data in the runoff events of an urban area during October 2014–May 2015. The sampling was conducted from the outlet of the city basin during seven precipitation events. For evaluation and ranking of the functions, we used the goodness of fit Kolmogorov–Smirnov and Anderson–Darling tests. The results of Cd analysis showed that Hyperbolic Secant, Wakeby and Log-Pearson 3 are suitable for frequency analysis of the event mean concentration (EMC), the instantaneous concentration series (ICS) and instantaneous concentration of each event (ICEE), respectively. In addition, the LP3, Wakeby and Generalized Extreme Value functions were chosen for the EMC, ICS and ICEE related to Pb contamination.