Naslov
Radon Levels in Manita Peć Cave (Croatian NP Paklenica) and Assessment of Effective Dose Received by Visitors and Tourist Guides

Autori
Radolić, Vanja ; Miklavčić, Igor ; Poje, Marina ; Stanić, Denis ; Vuković, Branko

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
IRPA13 Full Paper - 13th International Congress of the International Radiation Protection Association / IRPA - Glasgow : International Radiation Protection Association (IRPA), 2012, P10, 1056, 1-10

Skup
IRPA13 - 13th International Congress of the International Radiation Protection Association: Living with Radiation - Engaging with Society

Mjesto i datum
Glasgow, Ujedinjeno Kraljevstvo, 13.05.2012. - 18.05.2012

Vrsta sudjelovanja
Poster

Vrsta recenzije
Nije recenziran

Ključne riječi
Radon ; Cave ; Effective Dose ; Equilibrium Factor

Sažetak
The Manita peć cave is located within Croatian National Park Paklenica and it is the only cave open for visitors in the park among 70 others speleological objects. With the length of 175 meters it belongs to shorter speleological objects, but of great interest among tourist because of numerous cave ornaments and proximity to popular tourist destination on the Adriatic coast. The temperature and humidity are stable during a year with values about 10 °C and 100 %, respectively. In June 2010, the 15 months monitoring of natural radioactivity from radon and its short lived progeny has been started. Integrated radon measurements by means of solid state nuclear track etched detectors were conducted during every season of the year. Additional measurements were performed during summer period because of intense tourist visits. The daily variations of radon and its progeny were measured by AlphaGUARD measuring system. Average radon concentration in summer 2010 as well as in 2011 was 1.1 kBq m^-3, and was much higher than in other seasons (0.03 kBq m^-3 in winter 2010, for example). The obtained values categorize Manita peć cave among caves with lower radon concentration than world average (2.8 kBq m^-3). The daily variations in radon and its progeny concentrations as an influence of tourist activity during cave tours were not observed. Statistical t-test shows that radon concentration is uniformly distributed within cave in every season. The highest average effective dose from radon and its short lived progeny received by visitors during their 30 minutes tour was in summer period and equals 1.86 μSv. On the other hand, the maximum effective dose received by tourist guide was 0.247 mSv in 2010 and 0.215 mSv in 2011.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Geologija

Napomena
IRPA13 Full Papers - knjiga nije objavljena u
tiskanom obliku, već samo elektronski (pdf) na USB
memoriji i na internetskoj stranici kongresa

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