Wittdickson0386

The 8-hour equivalent a sound level (L(ex·8h)) over 85 dB (A) mainly includes boiler, steam turbine, electrical inspector and auxiliary value of water treatment. Conclusion The occupational hazards of waste incineration power generation enterprises are serious. Occupational health management and occupational health monitoring to reduce their occupational hazards to workers.Objective To establish a solvent desorption gas chromatography method for determination of cyclohexene in workplace air. Methods Cyclohexene in the air of workplace was collected with carbon tube and desorbed by carbon disulfide. The target toxicant was separated with the GC column and analyzed with FID detector, identified by retention time, and quantified by peak area. Results The linear range of cyclohexene in the air of workplace was 0.77~4 050.00 μg/ml, with a correlation coefficient of 0.9999. The limit of detection was 0.23 μg/ml. The lower limit of quantification was 0.77 μg/ml. The minimum detectable concentration was 0.15 mg/m(3) under1.5 L sampling volume and 1.0 ml extraction solution volume. The within-run precision of different cyclohexene concentrations was 0.62%~1.9% and the between-run precisions was 1.5%~3.5%; The average extraction efficiency was 96.4%; Penetration capacity (100 mg of carbon tube) was 29.4 mg; The average collection efficiency was 100%; The samples could be stored for 7 days at room temperature. When placed in 4 ℃ refrigerator, the samples could be stored for 14 days. selleck The potential coexistence of cyclohexane, hexane, benzene, toluene and ethylbenzene with cyclohexene in the air did not interfere with the results of determination. Conclusion This method has high sensitivity, precision, accuracy and lower limit of detection and it is applicable for determination of cyclohexene in workplace air.Objective To investigate the diagnosis and treatment of occupational acute methanol poisoning. Methods Retrospective analysis of the clinical data of 5 cases of occupational acute me thanol poisoning admitted from October 11 to 12, 2018. Results The first patient was diagnosed with severe acute methanol poisoning and died after treatment with mechanical ventilation, hemodialysis, and detoxification by ethanol and folic acid for 38 hours. The remaining four cases were all diagnosed with mild acute methanol poisoning and were discharged from hospital after active symptomatic support treatment for 63 to 69 hours. Fuhermore, all the four patients were followed up for one year and without sequelaes. Conclusion Early evaluation of the disease, early combination with hemodialysis, and use of detoxification drugs are the key to rescue occupational acute methanol poisoning.Objective To explore the clinical phenotypic characteristics of coal worker's pneumoconiosis for guiding the individualized treatment of various types of patients with coal worker's pneumoconiosis. Methods Collect clinical data of 121 cases of coal worker's pneumoconiosis in different stages, and select 16 clinical variables (age, smoking index, years of underground dust exposure, stages of pneumoconiosis, types of work, family history, main symptoms, secondary symptoms, CAT score, imaging manifestations, FVC%, FEV(1)/FVC, FEV(1)%, DLCO%, respiratory failure complications, pulmonary heart disease complications) . Principal Component Factor Analysis (PCA) was used to analyze 16 clinical variables of 121 patients with coal worker's pneumoconiosis. Extracted 2 principal components and 8 related variables from 16 clinical variables, then coal worker's pneumoconiosis patients were divided into three types according to CCC values. Variance analysis or χ(2) test were used to analyze the characteristics of these thretions (micro nodules, emphysema, mass shadow, fibrosis) , and those pneumoconiosis stages are mainly in the second and third stages. Conclusion According to the clinical characteristics, the patients with coal worker's pneumoconiosis were divided into 3 types by cluster analysis method, the treatment plan has certain guiding value in clinical work according to different classifications.The glufosinate poisoning can cause damage to the respiratory system and nervous system. In severe cases, respiratory failure and toxic encephalopathy are life-threatening. It should be paid attention to and supportive treatment.In this paper, 15 cases of acute oral glyphosate poisoning diagnosed by toxicant test in the Poisoning Treatment Center of the Army from March to August 2018 were analyzed, and the clinical characteristics and treatment effect of acute glyphosate poisoning were summarized, so as to improve the understanding, diagnosis and treatment level of the disease.Objective To explore the reproductive health status of the female street cleaners in Chaoyang district of Beijing and its influencing factors. Methods In July 2018, a total of 647 questionnaires were sent out to female road cleaning and sanitation workers in the whole district, 613 of which were valid, with an effective rate of 94.7%. Frequency or percentage (%) is used for statistical description of counting data, and mean standard deviation is used for measurement data. The influencing factors were analyzed by 2 test. Results The average age of 613 female road sweepers in Chaoyang District of Beijing was 42.01 (SD=6.69) years old, including 535 married female workers (87.28%) , 356 middle school and below educated (58.08%) , 292 non Beijing registered (47.63%) , accounting for (/613) , (/613) female workers working hours >8 hours per day 110 (17.94%) , weekly rest less then 2 days 341 (55.63%) . 144 (23.49%) women workers did not have regular gynecological examination, 119 (19.41%) had reproductive tract infections, 177 (28.87%) had abnormal menstruation in recent 6 months. Drinking, sexual behavior outside marriage, night shift and job satisfaction were all the influencing factors (P less then 0.05) . The increasing age, working years, drinking, household registration in other places and the decreasing satisfaction of women workers＇ rights and interests protection were all the influencing factors (P less then 0.05) . Conclusion The reproductive health status of female road sweepers in Chaoyang District of Beijing is not optimistic.