Evaluation of the risks caused by oil fields in the pollution of plants and water with heavy metals

الملخص

In order to assess the pollution situation with some heavy metals (Co, Pb, Cd), conducting a field study to find out about the pollution of plants and water with heavy elements in the areas around the field in Al Ahdab oil field in Al-Ahrar district, Wasit governorate, by collecting samples of plants and water from three times and at a distance of 500 m. 1000, 1500 AD from the source of the pollution, in addition to the fourth location (the comparison) at the 3000 AD dimension, and the results of the study showed that the average concentration of the heavy elements of lead, cadmium, and cobalt in the southeast direction and at the 500 AD distance were relatively higher in the northwest direction and in the same dimension. The concentration of the studied elements is higher than the internationally permissible limit and the high concentration of heavy elements in the growing natural plants and water samples in the locations near the source of pollution in the south-eastern part of Al-Ahdab oil field and the record is higher than the value of the international permissible limits (WHO/FAO, 2007) compared to the remote locations which recorded less than the global parameters in the plants for the near and far studied locations, but for the northwestern part, the concentration of heavy elements in the plants for the near and far locations decreased, and most of the studied elements recorded low values less than the global parameters.