الملخص

Abstract The study aimed to determine the concentrations of some gases and their effect on the Blood properties of the Workers in the General company for Fertilizers Industry . Blood samples were collected from (289) workers and they were divided to five groups according to work site , They were also divided into two groups according to exposure periods: (5) and (10) years. The results compared with (38) blood samples collected from healthy individuals living at Al-Hajaj and Al-Butoma area as a control groups. The results rerealed significant raises in the percentage of carboxy hemoglobin in all groups except quality control and inspection department group, in the different exposure periods. The results also showed an increase in ESR value and RBCs number, While. Showed a decrease in PCV , Hb , MCV , MCH and MCHC values in all groups in comparison with the control group through periods of exposures (5) and (10) years. No significant difference was recorded in the numbers of WBCs , in all studies groups in comparison with control group. While the percentage of nutrophils and acidophils was increased and decreased for lymphocyte according to basophils and monocytes. The percentage of these cells not affect in the three groups above in comparison with control groups.