Roczniki Państwowego Zakładu Higieny
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Radon-222 concentration in surface water, wells water and tap water in the main towns and villages which are located in area of Izera Plateau has been quantitative determined. The measurements were performed using the alpha liquid scintillation counting method. ⋯ Majority of waterworks in Izera Plateau is supplied with the ground water in which the radon concentration is high: from 113.3 Bq/l to 464.5 Bq/l. The appropriate mean value for water of individual wells was 253.0 Bq/l, within the range from 25.8 Bq/l to 1095.1 Bq/l.
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Rocz Panstw Zakl Hig · Jan 2002
[Assessment of learning conditions in urban and county secondary schools in the first year of education's system reform].
The study was conducted in spring 2000 on the representative national sample of 266 secondary schools. Collected data included information about the organisation of schools, hygienic conditions of classrooms, conditions of regular travelling to schools, using of day-rooms, base for physical education range of supplementary alimentation. It was established that on the contrary to the reforms program (education in different sites) secondary schools were located in 2/3 of cases in the same site with primary schools. ⋯ Both positive and negative aspects of education's conditions in urban and country secondary schools were similar with the exception of better technical status of buildings, more frequently taking offers of supplementary alimentation and more frequently organisation of breakfast at country schools. Urban schools had better conditions at day rooms and frequently owned the physical education halls. Presenting results may serve as a basis for planning activities to support health needs of children at urban and country secondary schools.