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PL
Oznaczano ilościowo stężenia radonu 222Rn w wodzie z publicznych ujęć wodociągowych zasilających miejscowości uzdrowiskowe Świeradów Zdrój i Czerniawa Zdrój oraz w wodzie z licznych ujęć indywidualnych. Radon oznaczano metodą ciekłej scyntylacji cząstek alfa. Oszacowano dawki promieniowania jonizującego otrzymywane przez osoby spożywające tą w wodę, m.in. w oparciu o przyjęte standardy spożycia.
EN
Radon-222 concentration in surface water, wells and tap water in Świeradów Zdrój and in Czerniawa Zdrój has been quantitative determined. The measurements were performed using the alpha liquid scintillation counting method. Radon arithmetic mean for water of individual wells in Świeradów Zdrój was found to be 438,5 Bq/l within the range between 42 Bq/ and 1095 Bq/l. The appropriate mean value for water of individual wells Czerniawa Zdrój was 165 Bq/l within the range from 25,8 Bq/l and 402,4 Bq/l. Waterworks in Czerniawa Zdrój is supplied with the surface water in which the radon concentration is low (about 2 Bq/l). Water works in Świeradów Zdrój is supplied with the mixed water consisting from the surface water, which main characteristic is low radon concentration (below 11 Bq/l), and from artesian well and mine gallery water with the radon concentration from 321 Bq/l to 464 Bq/l in it. This water is mixed in various ratios and therefore the radon concentration in it was within 4 Bq/l and 79 Bq/l.
PL
Oznaczano ilościowo stężenia radonu 222Rn w powietrzu w budynkach mieszkalnych miejscowości uzdrowiskowych Świeradowa Zdroju i Czerniawy Zdroju. Radon oznaczano metodą ciekłej scyntylacji cząstek alfa. Oszacowano dawki promieniowania jonizującego otrzymywane przez osoby zamieszkujące te budynki.
EN
Świeradrów Zdrój and Czerniawa Zdrój are located in Region Izera Block. A total of 789 radon passive dosimeters were distributed in 183 dwellings in these town Świeradów Zdrój and Czerniawa Zdrój to measure the indoor radon concentration in 1999. Three - five measurements were performed in each dwelling, one in the basement, and the others in the main bedroom, in the kitchen, in the bathroom, since these rooms are the most frequently occupied. In addition, the occupants of each dwelling were requested to answer a questionnaire in which a number of questions about the building, ventilation habits and other related aspects were formulated. A charcoal detectors (Pico-Rad system) were used in experiment. It is a passive short-term screening method of radon gas concentration measurements. The indoor radon level was found to range from 14,8 Bq/m3 to 5 723,9 Bq/m3. The arithmetic mean overall indoor concentration was 420,4 Bq/m3 and the geometric mean was 159,7 Bq/m3. The average concentration of indoor radon, which reflects the real risk for inhabitants, is 193,5 Bq/m3. The results hand a log-normal distribution. In Poland, an action level of 400 Bq/m3 was recommended for existing buildings and 200 Bq/m3 for newly built (after 1.01.1998) buildings. In about 23 % rooms the level of Rn-222 were above the top limit of 400 Bq/m3. The highest average concentrations were present in a basement (mean 919,9 Bq/m3). A decrease of average activity were observed at the upper levels: at the ground floor (225,2 Bq/m3) , at the first floor and at the higher floors (137,6 Bq/m3). The above results indicate that radon emission from the ground provides the main contribution to the radon concentration measured in dwellings indoors in Świeradów Zdrój and Czerniawa Zdrój. The effective dose to the population of the Świeradów Zdrój and Czerniawa Zdrój from indoor radon and its progeny can be derived from this data if we use an equilibrium factor of 0,4 between radon and its progeny and assuming an indoor occupation index of 0,8. Taking into account that a conversion coefficient of 1,1 mSv per mJ h m-3 is recommended in ICRP 65 for members of public, the measured average annual dose is then about 3,3 mSv per year.
PL
Oznaczano ilościowo stężenia radonu 222Rn w wodzie ze wszystkich ujęć (podziemnych i powierzchniowych) zasilających obszar Jeleniej Góry. Radon oznaczano metodą ciekłej scyntylacji cząstek alfa. Oszacowano, m.in. w oparciu o przyjęte standardy spożycia, dawki promieniowania jonizującego otrzymywane przez osoby spożywające tą wodę.
EN
In the last decade one can observe an increasing interest in the study of Rn levels in water samples. In Poland, radon concentration is measured continuously and routinely only in mineral and medical waters from springs located in the area of health resorts in the Sudety Mountains. The reason for these studies is the fact that waters present in this area have a high radon concentration. Radon - 222 concentration in surface water, wells water and tap water in Jelenia Góra has been quantitative determined. The measurements were performed using the alpha liquid scintillation counting method. "Grabarów", the main waterworks in Jelenia Góra is supplied with the mixed water consisting from the surface water (river Bóbr), which main characteristic is low radon concentration (below 11 Bq/l), and from ground water with the radon concentration from 179,6 Bq/l to 289,0 Bq/l in it. Also, waterworks „Ceglana" „Pod Karpaczem" „Śnieżne Kotły" is supplied with the ground water have a high radon concentration: from 93,2 Bq/l to 216,4 Bq/l. The next waterworks: “Podgórzyn" „Leśniczówka" „Kamienna Wieża", „Górzyniec" and „Centrum-Jelchem" is supplied with the surface water in which the radon concentration is low: from 1,1 Bq/l to 7,5 Bq/l. The annual effective dose to an individual from an intake of radon-222 via ingestion of drinking water is calculated by the Crawford-Brown's biokinetic model. In the present study it was found to be about 0,9 mSv/y (222Rn concentration level in drinking waters about 200 Bq/l).
PL
Oznaczano ilościowo stężenia radonu 222Rn w wodzie powierzchniowej i podziemnej oraz w wodzie ze studni indywidualnych na terenie Pogórza Karkonoskiego. Radon oznaczano metodą ciekłej scyntylacji cząstek alfa.
EN
Radon-222 concentration in surface water, wells water and tap water in the main towns and villages which are located in area of Karkonoskie Plateau has been quantitative determined. The measurements were performed using the alpha liquid scintillation counting method. Majority of waterworks in Karkonoskie Plateau is supplied with the ground water in which the radon concentration is high from 87,5 Bq/1 to 818,1 Bq/1. The waterworks in Karpacz are supplied with the surface water, which main characteristic is low radon concentration (below 10 Bq/1) and with the ground water have a high radon concentration (to 541 Bq/1). Radon-222 concentration in water of individual wells was similar to concentration in the ground water.
PL
Oznaczano stężenie radonu w Inhalatorium Radonowym w Kowarach koło Jeleniej Góry. Na tej podstawie szacowano również dawki pochodzące z produktów rozpadu radonu na nabłonek oskrzelowy płuc otrzymane przez pacjentów, którzy zostali poddani zabiegom inhalacyjnym radonu-222 w tym Inhalatorium.
EN
In this paper the measurements of radon-222 concentration in the air of Kowary Radon Inhalatorium in the vicinity of Jelenia Góra, Lower Silesia, Poland, performed by Radiation Protection and Radiobiology Department of National Institute of Hygiene in Warsaw, have been presented. For the measurements the integration method with the application of charcoal canisters have been used. The radon concentration was found within the very broad ranges from about 4 to 420 kBq m-3 depending of the season of the year. Basing on the radon concentration measurements during the inhalation therapy session and taking into account the equilibrium factor of 0,8 the doses to the bronchi of the patients in range from 1,2 to about 204 mSv (0,12 - 20,4 rem) have been assessed. The majority of patients (ca. 76%) received the doses between 115 and 204 mSv.
PL
Oznaczano ilościowo stężenia radonu 222Rn w wodzie powierzchniowej i podziemnej oraz w wodzie ze studni indywidualnych na terenie Pogórza Izerskiego. Radon oznaczano metodą ciekłej scyntylacji cząstek alfa.
EN
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. The main waterworks in Szklarska poręba is supplied with the surface water in which the radon concentration is low: from 1,23 Bq/l to 4,32 Bq/l. Waterworks "Huta Julia" is supplied with the ground water have a high radon concentration: from 294,4 Bq/l to 319,5 Bq/l. 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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