تقييم التلوث ببعض العناصر الثقيلة في غبار مدينة كركوك، العراق

Assessment some heavy elements pollution in dust of Kirkuk city, Iraq

Pollution is the most important problems facing the human being at the present time. Air pollution is the most serious problem because of its direct relation to human health and other organisms. Dust samples were collected in some area of city of Kirkuk, depending on several factors such as traffic, industrial and urban activities and population density. The amount of dust deposited and some heavy metals such as Co, Cu, Pb and Fewere determined. The highest value of 148 g / m 2 was recorded for dust in the fifth region / Tergil in April and an average of 111.5 g / m 2 , while the lowest value of 8 g / m 2 was for the second region / Al-Mualmeendistrict. High values of the heavy elements especially iron and lead were in April due to dust storm that came into Iraq from neighbor countries and from traffic and industrial activity, especially cement factory as well as the lack of vegetation in the region. High levels of Cu, Co may have sources from Industrial activities, while the main source of Pb ismay be from traffic movement. The results of Geological accumulation factor (I-Geo factor) and contamination factor( CF) as well as pollution load factor PLI indicate the safety of the city of Kirkuk from air pollution by heavy metals with exception of Fe iron and Pb lead in the fifth region.