Objective To study the impact of earthquake disasters on the mental health of military medical personnel during emergency rescue. Methods Three hundred military medical personnel who participated in the emergency rescue of earthquake disasters in five military hospitals in Shaanxi Province were selected as the study subjects, and their mental health levels were analyzed using the Mental Symptom Checklist 90 (SCL-90). Results In this survey, a total of 300 SCL-90 questionnaires were issued, 300 were recovered, and the effective recovery rate was 100%. Only 30.67%(92/300) of people participated in emergency disaster rescue during investigation, 31.33% (94/300) had psychological problemsafter arriving in the earthquake-stricken area after one week, such as somatization, obsessive-compulsive disorder, anxiety, and horror. SCL-90 scores were 0.45±0.03, 1.13±0.13, 0.79 ±0.08, 1.07±0.09, 1.01±0.14. The psychological stress response rates of the emergency response of military medical staff of different characteristics were different. Among them, the stress response rates of military personnel with different degrees (specialty, bachelor or above) and whether they have participated in rescue work were 74.07% (40/54), 21.95% (54/246), 15.22% (14/92), 38.46% (80/208).The difference was statistically significant (χ2=55.913,16.018, P<0.01). Conclusions The medical staff of the army participating in the earthquake disaster rescue has psychological pressure due to many injuries, environmental risks, lack of supplies, etc. The medical unit should provide adequate training in theory and practice to its personnel and focus on the mental health of rescue workers, give timely psychological counseling to ensure the successful completion of the rescue.

Objective To establish a simultaneous detection approach for 34 emerging contaminants(ECs)in tap water by liquid chromatography-tandem mass spectrometry(HPLC-MS/MS).Human health risk assessment was performed according to the detection results from 43 tap water samples.Methods Tap water samples were concentrated and extracted by solid phase extraction,and then blown to near dry by nitrogen at 40℃.The sample extracts were dissolved in methanol-water solution(95:5,VN)to 0.5 mL for analyzing.Agilent Jet Stream Electrospray Ionization(AJS ESI)and the multiple reaction monitoring(MRM)mode were performed for MS to acquire the data of 34 ECs.A database including precursor ion,product ion and retention times was established accordingly.Results The average linear correlation coefficients(r)of 34 kinds of ECs was 0.995 9.The limits of detection were 0.01～0.60 ng/L and the recoveries were between 60.7％and 119.8％.The intra-group precisions were between 0.05％～9.89％and the intra-day precisions were between 0.20％～14.40％for the spiked samples.The method was applied to analyze 43 tap water samples and a total of 15 ECs were detected.According to the results,the detection rate of caffeine was the highest(84％),and the concentration range was ND～74.42 ng/L.Among all the ECs detected,1,2,3-benzotriazole had the highest concentration(ND～361.15 ng/L),where detection rate was 44％.Humans may be exposed to these ECs by drinking the tap water.The human health risk assessments of 12 kinds of ECs were carried out,however,the estimated risk was negligible(risk quotient＜0.01).Conclusion The method is simple,highly sensitive and selective,and could meet the detection needs of ECs at trace level in tap water.There was no human health risk posed for ECs identified in 43 tap water samples analyzed by this method.

Animals ; Cdc20 Proteins/metabolism* ; Cell Line ; Embryo, Mammalian/embryology* ; Embryonic Development ; Female ; Infertility, Female/metabolism* ; Mice ; Mutation ; Oocytes/metabolism*