Survey of pollution resources impacts on Siyahrud (Zarjoob) River in Guilan province

The rivers are one of the main sources of water supply for different usage like agriculture,domestic and industrial. Therefore, according to the recent droughts in the country and also urban and rural development it is important to conserve these resources. The river of Siyahrud (zarjoob) within Guilan province originates from Neyzesar Mountain and from Emamzadeh Hashem heights. The river after passing from Bijarsar valley and the eastern part of Rasht reach to Pirbazar River and at the end to Anzali Lagoon. A lot of wastewater from factories, urban and agricultural activities discharge directly to the river and put the river in danger. In this study the pollution resources and the quality parameters of them and the quality parameters of the river analyzed and compared with quality standard of Iran Department of Environment. Furthermore the discharge of the river during 40 years period analyzed and the months with lowest discharge determined. Then the pollution trend during the year compared with the discharge of the river and at the end some suggestion presented to reduce the impacts.

Keywords:

Water resource , Pollution , Pollution sources , Siyahrud (Zarjoob) River