Objective To explore the effects of magnetic field on peripheral blood by comparing the peripheral hemogram of the soldiers and officers of radar troops and the personnel in physical examination.Methods One hundred and eighty-nine soldiers and officers of radar stations whose average age was (23.2±3.5) yr,radar working experience was more than 2 years and the habitation was in radiation area without any special protection measures,were selected as test group.Other 53 soldiers and officers who were received physical examination in Air Force General Hospital were selected as control group.Their average age was (21.3 ± 2.6) yr and they had no history of electromagnetic radiation exposure.The blood routine examination was done for 2 groups to compare and analyze the effects of magnetic field on peripheral blood.Results ① The abnormal rate of peripheral blood of test group was 60.90％.The hematocrit,mean corpuscular volume,mean corpuscular hemoglobin,mean platelet volume,red blood cell distribution width,lymphocyte,lymphocyte count was respectively higher than normal value,but the neutrophilic granulocyte was lower than normal value.The higher abnormal rate of lymphocyte,hematocrit,mean platelet volume,neutrophilic in test group was respectively 39.68％,21.69％,17.46％,17.46％.The abnormal rate of hematocrit and lymphocyte of control group was respectively 3.77％ and 5.66％.②The values of hematocrit,mean corpuscular volume,mean corpuscular hemoglobin,red blood cell distribution width,lymphocyte,lymphocyte count,eosinophil granulocyte,eosinophil granulocyte count,platelet hematocrit,mean platelet volume and platelet distribution width of test group were higher than those of control group (P＜0.05).The values of mean corpuscular hemoglobin concentration,neutrophilic and neutrophilic count were lower than those of control group (P ＜ 0.05).Collusions The magnetic field environment has resulted in a certain impact on the peripheral blood of the soldiers and officers of radar troops.Active protective measures should be taken to protect magnetic radiation.

Objective To study the change law of immunoglobulin (Ig) (IgG,IgA,IgM) and complement levels (C3,C4) in the peripheral blood of pilots by quantitative detection and to suggest the preventive measures.Methods IMMAGE800 instrument was used to detect the immunoglobulin and complement levels in 383 active pilots and 100 ground crews.Pilots were divided into bomber,transporter,helicopter and fighter groups by aircraft type.The ground crews were chosen as control group.Results Comparing to the control group,pilots showed lower peripheral blood IgG and IgM but higher C3 and C4 levels.Bomber group had lower IgG and higher C3 and C4 levels (P＜0.05).Transporter group had lower IgG and IgM but higher C3 and C4 levels (P＜0.05).Helicopter group showed lower IgG and IgM but higher C4 level (P＜0.05).Fighter group showed lower IgG but higher C3 and C4 levels (P＜0.05).Conclusions The changes on immunoglobulin and complement levels indicate the certain harmful effects on pilot's immune system.The environment factors may be the main reason led to pilot's lower IgG and IgM but higher C3 and C4 levels.The prevention of electromagnetic radiation in flight should be strengthened as the basic measures for maintaining pilot's immune functions.

Objective To explore the effects of magnetic field on peripheral blood by comparing the peripheral hemogram of the soldiers and officers of radar troops and the personnel in physical examination.Methods One hundred and eighty-nine soldiers and officers of radar stations whose average age was (23.2±3.5) yr,radar working experience was more than 2 years and the habitation was in radiation area without any special protection measures,were selected as test group.Other 53 soldiers and officers who were received physical examination in Air Force General Hospital were selected as control group.Their average age was (21.3 ± 2.6) yr and they had no history of electromagnetic radiation exposure.The blood routine examination was done for 2 groups to compare and analyze the effects of magnetic field on peripheral blood.Results ① The abnormal rate of peripheral blood of test group was 60.90％.The hematocrit,mean corpuscular volume,mean corpuscular hemoglobin,mean platelet volume,red blood cell distribution width,lymphocyte,lymphocyte count was respectively higher than normal value,but the neutrophilic granulocyte was lower than normal value.The higher abnormal rate of lymphocyte,hematocrit,mean platelet volume,neutrophilic in test group was respectively 39.68％,21.69％,17.46％,17.46％.The abnormal rate of hematocrit and lymphocyte of control group was respectively 3.77％ and 5.66％.②The values of hematocrit,mean corpuscular volume,mean corpuscular hemoglobin,red blood cell distribution width,lymphocyte,lymphocyte count,eosinophil granulocyte,eosinophil granulocyte count,platelet hematocrit,mean platelet volume and platelet distribution width of test group were higher than those of control group (P＜0.05).The values of mean corpuscular hemoglobin concentration,neutrophilic and neutrophilic count were lower than those of control group (P ＜ 0.05).Collusions The magnetic field environment has resulted in a certain impact on the peripheral blood of the soldiers and officers of radar troops.Active protective measures should be taken to protect magnetic radiation.

Objective To study the change law of immunoglobulin (Ig) (IgG,IgA,IgM) and complement levels (C3,C4) in the peripheral blood of pilots by quantitative detection and to suggest the preventive measures.Methods IMMAGE800 instrument was used to detect the immunoglobulin and complement levels in 383 active pilots and 100 ground crews.Pilots were divided into bomber,transporter,helicopter and fighter groups by aircraft type.The ground crews were chosen as control group.Results Comparing to the control group,pilots showed lower peripheral blood IgG and IgM but higher C3 and C4 levels.Bomber group had lower IgG and higher C3 and C4 levels (P＜0.05).Transporter group had lower IgG and IgM but higher C3 and C4 levels (P＜0.05).Helicopter group showed lower IgG and IgM but higher C4 level (P＜0.05).Fighter group showed lower IgG but higher C3 and C4 levels (P＜0.05).Conclusions The changes on immunoglobulin and complement levels indicate the certain harmful effects on pilot's immune system.The environment factors may be the main reason led to pilot's lower IgG and IgM but higher C3 and C4 levels.The prevention of electromagnetic radiation in flight should be strengthened as the basic measures for maintaining pilot's immune functions.