Spatial Analysis of Groundwater Pollution with Trace Elements in Al-Muthanna Governorate
Abstract
The study included determining the extent of groundwater pollution in Al-Muthanna Governorate with heavy or trace elements by focusing on pollutants. 23 samples of groundwater were collected from different areas of Al-Muthanna Governorate during four readings during the year (2019-2020) and laboratory analyzes were conducted It is based on Iraqi and international standards to clarify the extent of the usefulness of groundwater and to know the quality and concentration of its pollutants, and to prepare maps for the region in order to give a clear picture of the concentration of heavy metal values in groundwater. And that most of the trace elements in the composition of the Iraqi fertilizers used in agriculture in the study area and transferred to the groundwater through filtration, and the percentages of pollution with trace elements of the water wells of the study area change from one place to another depending on the proximity of the sources of nutrition and the distance they travel, and an increase in salinity towards the north-east. And that the groundwater of good quality is present in the areas of (Ansab, grooves, Al-Salman) and it is due to the presence of reservoirs whose main source of nutrition is rain water, and it was found that it is suitable for human drinking and its water is within the permissible limits and is suitable for most agricultural crops. The waters of the region were characterized by containing concentrations higher than the permissible limits for some rare elements such as (boron, iron, manganese, lead, phosphate, nickel, cadmium) according to the standards of the World Health Organization (WHO) and the Iraqi standards, especially towards the drainage areas. The surfaces and inconsistencies that exist between the region's causticities and their mixing with deep waters rich in these elements.
