Results 11 to 20 of about 12,532 (187)

Characteristics of Groundwater Flow in Tidal Wetland in Pearl River Estuary under Heterogeneous Conditions

Redai dili, 2022
Groundwater flow in tidal wetlands is an important part of coastal estuarine hydrological cycle. The results of previous studies were based on the condition that the aquifer was homogeneous. Moreover, the understanding of groundwater circulation in tidal
Huang Pinyi, Tang Changyuan, Xuan Yingxue, Jiang Tao, Cao Yingjie   +4 more
doaj   +1 more source

Statistical analysis of 222Rn concentration in Zamzam and other water sources in the Kingdom of Saudi Arabia

Heliyon, 2021
In the present study, six water samples were collected from different locations in the Kingdom of Saudi Arabia and another sample from the Zamzam site in Makkah city.
Kaltham B. Aljaloud, Mervette ElBatouti
doaj   +1 more source

An experimental search for a correlation between outdoor 222Rn concentration and 210Pb activity in air particulate samples [PDF]

Nuclear Technology and Radiation Protection, 2018
This work was aimed to search for a correlation between outdoor 222Rn air concentration and 210Pb activity in particulate samples collected on a filter.
Tomarchio Elio A.G.
doaj   +1 more source

Distribution of 222Rn in Seawater Intrusion Area and Its Implications on Tracing Submarine Groundwater Discharge on the Upper Gulf of Thailand

Lithosphere, 2022
Radon (222Rn) has been widely employed as a tracer for estimating submarine groundwater discharge (SGD). However, the uncertainty of the SGD estimation remains significant, due to the spatial variability of radon in groundwater.
Yancheng Wang, Guangquan Chen, Hongjun Yu, Xingyong Xu, Wenquan Liu, Tengfei Fu, Qiao Su, Yinqiao Zou, Narumol Kornkanitnan, Xuefa Shi   +9 more
doaj   +1 more source

Quantification of emission estimates of CO2, CH4 and CO for East Asia derived from atmospheric radon-222 measurements over the western North Pacific [PDF]

Tellus: Series B, Chemical and Physical Meteorology, 2013
Emissions of CO, CH4 and CO2 in East Asia were estimated using the atmospheric concentration of 222Rn measured at Minamitorishima (MNM) and Yonagunijima (YON) with a high-precision 222Rn measuring system. The 222Rn measurements showed a distinct seasonal
A. Wada, H. Matsueda, S. Murayama, S. Taguchi, S. Hirao, H. Yamazawa, J. Moriizumi, K. Tsuboi, Y. Niwa, Y. Sawa   +9 more
doaj   +1 more source

Radioactivity of soil in Croatia I: naturally occurring decay chains

Arhiv za Higijenu Rada i Toksikologiju, 2021
The assessment of environmental radioactivity much relies on radionuclide content in soil. This stems from the significant contribution of soil to both external and internal exposure to ionising radiation via direct emission of gamma radiation and soil ...
Šoštarić Marko, Petrinec Branko, Avdić Mak, Petroci Ljerka, Kovačić Milica, Zgorelec Željka, Skoko Božena, Bituh Tomislav, Senčar Jasminka, Branica Gina, Franić Zdenko, Franulović Iva, Rašeta Davor, Bešlić Ivan, Babić Dinko   +14 more
doaj   +1 more source

Radium interference during radon measurements in water: comparison of one- and two-phase liquid scintillation counting

Arhiv za Higijenu Rada i Toksikologiju, 2021
Assessment of radiation exposure to drinking, surface, and groundwater and of the associated health risks calls for accurate and precise 226Ra and 222Rn measurements.
Stojković Ivana, Todorović Nataša, Nikolov Jovana   +2 more
doaj   +1 more source

Canopy uptake dominates nighttime carbonyl sulfide fluxes in a boreal forest [PDF]

, 2017
Nighttime vegetative uptake of carbonyl sulfide (COS) can exist due to the incomplete closure of stomata and the light independence of the enzyme carbonic anhydrase, which complicates the use of COS as a tracer for gross primary productivity (GPP).
Aalto, J., Aalto, J., Chen, H., Chen, H., Franchin, A., Franchin, A., Kolari, P., Kooijmans, L. M. J., Mammarella, I., Maseyk, K., Seibt, U., Sun, W., Valli, G., Vecchi, R., Vesala, T., Vesala, T.   +15 more
core   +7 more sources

Estimation of 222Rn Concentration in the Lower Troposphere during Precipitation Using Wet Scavenging Model for its Decay Products

Asian Journal of Atmospheric Environment, 2010
The gaseous 222Rn concentration at the level of clouds was estimated by using the wet scavenging model of its decay products with the observed data of environmental radiation at the ground. And the origin of the 222Rn was also discussed.
Masanori Takeyasu, Minoru Takeishi
doaj   +1 more source

Track Reconstruction and Performance of DRIFT Directional Dark Matter Detectors using Alpha Particles [PDF]

, 2007
First results are presented from an analysis of data from the DRIFT-IIa and DRIFT-IIb directional dark matter detectors at Boulby Mine in which alpha particle tracks were reconstructed and used to characterise detector performance--an important step ...
A. Petkov, A.StJ. Murphy, Alner, Alner, Bergstrom, Bigu, C. Ghag, Castleman, Chu, Copi, D. Loomba, D. Muna, D.P. Snowden-Ifft, E. Tziaferi, Frey, G.G. Nicklin, Goldstein, Hopke, J. Forbes, J. Turk, Leonard, Lightfoot, M. Gold, M. Robinson, Maiello, Mangiarotti, Maniyan, Martoff, McLaughlin, Morgan, N. Sanghi, N.J.C. Spooner, N.J.T. Smith, Nazaroff, Ohnuki, P. Majewski, Postendörfer, Press, S. Burgos, S.J.S. Plank, S.M. Paling, Sasse, Snowden-Ifft, Snowden-Ifft, Snowden-Ifft, Strydom, T.B. Lawson, T.J. Sumner, V.A. Kudryavtsev, Yoon   +49 more
core   +3 more sources