Assessment of untreated wastewater used for crop irrigation in Khassa stream- Kirkuk/Iraq

Abstract

The environmental pollution is a widespread problem facing major cities in developing countries over the past decades, the main forms of water pollution are wastewater from various human, agricultural, industrial and household activities. The wastewater produced by different human activities varies, so it is difficult to establish fixed rates for their components. It is composed of a dilute mixture of several types of contaminants, and the components depend on the sources they supply. Organic, inorganic and other substances in soluble, suspended, and colloidal state are the main components [4]. Pathogens associated with toxic waste and chemicals from these waters pose health risks for farmers, t heir families andcommunities living near wastewater, as well as consumers of crops irrigated with this polluted water.