Investigaition was conducted in the year 2002 on 322 households of vegetable cultivator in Tuc Duyen commune, Thai Nguyen city. Vegetable samples were collected randomly to determine residues of pesticide using gaz-chromatography. In 3 kinds of common vegetable, pesticide residues were detected (bean 60%, bindweed 70%, cabbage 80%). In an average of 70% of samples, residues were detected. Soaking and washing reduced the chemical concentration in vegetable from 27.1% to 50%, depending on the kind of chemical and vegetable. In bindweed 71.4% of samples were contaminated with at least 2 kinds of chemicals. The awareness and practice of cultivators and users were very restricted, lacking of protective means
Pesticides ; Vegetables ; Pesticide Residues

Background: Hepatic trauma is a common disease in surgical emergency. Nowadays, there are many means of diagnostic imaging such as ultrasound, computerized tomography, magnetic resonance imaging.. but computerized tomography is more valuable in the diagnosis and treatment decisions. Objectives: To assess the value of computerized tomography in diagnosis of hepatic trauma. Subjects and method: To conduct computerized tomography on 36 patients with hepatic trauma (28 male, 8 female, aged 5-70 year olds), was diagnosed by ultrasound in Viet Duc hospital from January, 2005-June, 2005. Results: Major cause of the trauma was still due to traffic accidents (77.8%), followed by living and occupational accidents (61.5%). Using computerized tomography, there were only 12 patients undergoing surgery, the remainders were conservative treated. The common signs were: fluids in abdominal cavity: 33/36 patients (91.7%), without fluids in abdominal cavity: 3 patients. Parenchyma crush: 28/36 patients (77.8%). The most common lesion site was right liver. Diagnostic CT scans at 4 or more degrees was necessary during considering surgical indication for cases of having combined injuries, which can lead to hemodynamic dysfunction. Therefore, clinicians tend to use conservative therapy in hepatic trauma. Conclusion: CT scans was chosen as major examination to determine exactly level of lesions and to decide procedures.
Liver/ injuries ; Tomography ; X-Ray Computed ;