A study of intervention solutions for the exhaust from 4 thermo-electrical kilns, from synthetic process of in NH3 and dust due to NPK fertilizer production was carried out to evaluate the efficacy of technological improvement solutions in reducing environment pollution. Results: concentration of dust and toxic fumes was reduced, concentration of the exhaust components eliminated to environment through the chimneys of gases-made kilns reduced significantly after changing technology. NH3, CH4, H2 from producing NH3 decreased clearly, dust from producing NPK reduced 1.63-1.92 times
Environmental Pollution ; Gases ; Waste Products ; Fertilizers

The study surveyed the morbidity and hospital admission of Bac Giang city population in the year 2001, especially the prevalence of cancer. 3.000 households were enrolled in the study. Data were collected and interviews were conducted. Analysis showed people had a high demand of health care in hospital, especially with cancer management. 31.1% of urban population demanded a hospital admission. In 5 year period in the city, the cancer incidence was 158.9/100.000 people in average. The highest was in 50-69 age group, and this incidence was higher in male than female
Therapeutics ; Inpatients/morbidity ; Morbidity ; Epidemiology

The average incidence/case/year of Ha Bac nitrate and chemical factory during two years (2002-2003) was 1.38 incidence/case/year (2002) and 1.63 incidence/case/year (2003). The diseases were high incidence as follows: odonto-maxial-facial disease, ear-nose-throat disease. Workers with I health level and II health level were the highest: 70.33% (2002) and 65.05% (2003). The rate of workers with III health level were very high and tend to increase, remained the rate of workers with V health level.
Health ; Nitrates ; Chemical Industry