In this study, a water quality model of Haraz basin was used as an evaluative tool to estimate the spatial distribution of variables that are related to water quality and nutrient loads of the Haraz River. Previous studies performed in this river indicate that trout culture activity along the Haraz River have led to various changes in the water quality parameters. In the present work, the possi...

In this study, a water quality model of Haraz basin was used as an evaluative tool to estimate the spatial distribution of variables that are related to water quality and nutrient loads of the Haraz River. Previous studies performed in this river indicate that trout culture activity along the Haraz River have led to various changes in the water quality parameters. In the present work, the possi...

Suspended particles in rivers can act as carriers of potentially bioavailable metal species and are thus an emerging area of interest in river system monitoring. The delineation of bulk metals concentrations in river water into dissolved and particulate components is also important for risk assessment. Linear relationships between bulk metal concentrations in water (CW,tot) and total suspended ...

haraz river originates from the northern slopes of the alborz and is flowed in a relatively broad valley. there are several village, sector, twenty sand factories and fish culture farms alongside of this river. in addition, restaurants and rest place for travelers sometimes used as a place. this study was performed to study the coliform contamination of ground water along the haraz river.in thi...

water samples have been collected from key parts of haraz river along different points andanalyzed for various water quality parameters during winter and spring season. effects of industrial wastes,municipal sewage, fish farming and agricultural runoff on river water quality have been investigated. thesurvey was conducted on along the haraz river (185 km) from near its headwaters at the polour,...

The aim of this study was to investigate the seasonal and spatial variations in concentrations a widely used organophosphorous pesticide (OPP), diazinon, associated risk posed by OPP surface water from three largest rivers located northern province Iran: Haraz, Talar Babolrood rivers. These are agriculture Mazandaran, exposed high doses organophosphorus pesticides, especially diazinon. concentr...

With the rapid economic development, the water quality is getting worse in Haraz River Basin and the adjacent areas. To improve the water quality, the total inland pollutant load should be controlled effectively. Therefore, a simulation model for the prediction of the steady-state water quality in terms of BOD, based on Streeter Phelps equation, was developed. The Streeter-Phelps equation gives...

pollutants of various sources and nature, including heavy metals, find their way into the haraz river .cadmium (cd) and lead (pb) concentrations and their fluctuations in the tissues of several fish species in the lower part of the river were investigated. the fish samples were caught by using electroshoker. using f.test and anova indicated different but significant , concentration of,these hea...

there are different methods for controling the flood damages which one of them is flood zoning. in this method, flood zones are determined by simulating river hydraulic behavior and its flood plain for different return periods.in other hand, soil and specially plant coverage are the most effective factor to determine manning roughness coefficient. so it is expected, seasonal plant coverage chan...