The following articles explore specific advantages of DURRIDGE products.
This article explains that when a RAD7 is used in the presence of CO2, the thoron measurement is diminished more than the radon reading, and that therefore the 220Rn/222Rn ratio decreases as a function of CO2 concentration.
© 2013 Institute of Geophysics, Polish Academy of Sciences.
An examination of the suitability of the RAD7 for short term radon tests.
This document compares the RAD H2O, Big Bottle System, RAD AQUA, and Water Probe.
When calibrating an instrument for thoron measurement, it is necessary to use a thoron sample of known strength and to account for its short half life.
Sniffing for thoron with a RAD7 is the quickest way to locate a radon point of entry.
The RAD7’s method of measuring radon allows it to be used repeatedly without requiring an excessive recovery time between separate measurements.
Soil Gas Measurement (HTML)
This article explains how a soil probe is used with a RAD7 to measure radon concentrations in soil gas while preventing the sample from being diluted by outside air.
This article explains how better time resolution and higher sensitivities can be achieved with new radon measurement technologies.
This article explains how the RAD7 and an air-water exchanger can determine the radon activity in coastal ocean waters on a continuous basis.
Published Research Involving DURRIDGE Products
Dulai, Henrietta et al: Autonomous long-term gamma-spectrometric monitoring of submarine groundwater discharge trends in Hawaii. © 2016 Journal of Radioanalytical and Nuclear Chemistry. [View Article]
Carlo Lucchetti, Gabriele De Simone, Gianfranco Galli, and Paola Chanyotha: Evaluating radon loss from water during storage in standard PET, bio-based PET, and PLA bottles. © 2015 Radiation Measurements. [View Article]
Tuccimei, Paola et al: Our PET project: an unlimited supply of big and small water sample vials for the assay of radon in water. © 2015 Journal of Radioanalytical and Nuclear Chemistry. [View Article]
Lee, Kil Yong and Burnett, William: Determination of air-loop volume and radon partition coefficient for measuring radon in water sample. © 2013 Journal of Radioanalytical and Nuclear Chemistry. [View Article]
T Kluge, J Ilmberger, C Von Rohden and W Aeschbach-Hertig: Tracing and quantifying groundwater inflow into lakes using a simple method for radon-222 analysis: Hydrology and Earth System Sciences Discussions 11, 5 (2007) 1621-1631 [View Article]
Chi-Yu, Lin, Chih-Chieh, Su and Hsieh-Tang: Tracing Submarine hydrothermal Groundwater Discharge around Kueishantao off northeastern Taiwan using Radon. [View Article]
Supitcha Chanyotha, Chutima Kranrod, William C. Burnett, Derek Lane-Smith, and Jesse Simko: Prospecting for Groundwater Discharge in the Canals of Bangkok via Natural Radon and Thoron. © 2014 Journal of Hydrology. [View Abstract]
Hofmann, Harald, Gilfedder, Benjamin S., and Cartwright, Ian: A Novel Method Using a Silicone Diffusion Membrane for Continuous 222Rn Measurements for the Quantification of Groundwater Discharge to Streams and Rivers. © 2011 American Chemical Society. [View Abstract]
JO Lopez Plana: Ra isotopes and Rn as a tool for the water management resources: The Alberquillas aquifer (Málaga-Granada): Recercat, 2012. [View Abstract]
N Dimova, WC Burnett and D Lane-Smith: Improved automated analysis of radon (222Rn) and thoron (220Rn) in natural waters: Environ. Sci. Technol., 2009, 43 (22), pp 8599–8603 [View Abstract]
J de Weys, IR Santos and BD Eyre: Linking Groundwater Discharge to Severe Estuarine Acidification during a Flood in a Modified Wetland: Environ. Sci. Technol., 2011, 45 (8), pp 3310–3316 [View Abstract]
IR Santos, DT Maher and BD Eyre: Coupling Automated Radon and Carbon Dioxide Measurements in Coastal Waters: Environ. Sci. Technol., 2012, 46 (14), pp 7685–7691 [View Abstract]
KL Knee and TE Jordan: Spatial Distribution of Dissolved Radon in the Choptank River and Its Tributaries: Implications for Groundwater Discharge and Nitrate Inputs: Estuaries and Coasts, 2013 [View Abstract]
KC Tse and JJ Jiao: Estimation of submarine groundwater discharge in Plover Cove, Tolo Harbour, Hong Kong by 222Rn: Marine Chem., 2008, 111 (3-4), pp 160-170 [View Abstract]
V Rodellas, J Garcia-Orellana, E Garcia-Solsona, P Masqué, JA Domínguez, BJ Ballesteros, M Mejías, M Zarroca: Quantifying groundwater discharge from different sources into a Mediterranean wetland by using 222Rn and Ra isotopes: J. Hydrology, 2012, 466-467, pp 11-22 [View Abstract]
E Garcia-Solsona, J Garcia-Orellana, P Masqué, E Garcés, O Radakovitch, A Mayer, S Estradé and G Basterretxea: An assessment of karstic submarine groundwater and associated nutrient discharge to a Mediterranean coastal area (Balearic Islands, Spain) using radium isotopes: Biogeochemistry, 2010, 97, pp 211-229 [View Abstract]
AC Bianco, A Watanabe, K Nadaoka, S Motooka, EC Herrera and T Yamamoto: Estimation of nearshore groundwater discharge and its potential effects on a fringing coral reef: Marine Pollution Bull., 2011, 62, pp 770-785 [View Abstract]
HA Dugan, T Gleeson, SF Lamoureux and K Novakowski: Tracing groundwater discharge in a High Arctic lake using radon-222: Env. Earth Sci., 2012, 5, pp 1385-1392 [View Abstract]
N Dimova, WC Burnett, JP Chanton and JE Corbett: Application of radon-222 to investigate groundwater discharge into small shallow lakes: J. Hydrology, 2013, 486, 112-122 [View Abstract]
T Hosono, M Ono, WC Burnett, T Tokunaga, M Taniguchi, and T Akimichi: Spatial Distribution of Submarine Groundwater Discharge and Associated Nutrients within a Local Coastal Area: Environ. Sci. Technol., 2012, 46 (10), pp 5319–5326 [View Abstract]
KA Null, NT Dimova, KL Knee, BK Esser, PW Swarzenski, MJ Singleton, M Stacey, A Paytan: Submarine Groundwater Discharge-Derived Nutrient Loads to San Francisco Bay: Implications to Future Ecosystem Changes: Estuaries and Coasts, 2012, 35, pp 1299-1315 [View Abstract]
WC Burnett, RN Peterson, S Chanyotha, G Wattayakorn and B Ryan: Using high-resolution in situ radon measurements to determine groundwater discharge at a remote location: Tonle Sap Lake, Cambodia: J. Radioanal. & Nuc. Chem., 2013, 296, pp 97-103 [View Abstract]
PW Swarzenski, H Dulaiova, ML Dailer, CR Glenn, CG Smith and CD Storiazzi: A Geochemical and Geophysical Assessment of Coastal Groundwater Discharge at Select Sites in Maui and O’ahu, Hawaii: Groundwater in the Coastal Zones of Asia-Pacific, 2013, pp 27-46, Springer [View Abstract]