Results 11 to 20 of about 17,476 (194)

Pan-Arctic Peatlands Have Expanded During Recent Warming. [PDF]

Glob Chang Biol
Arctic peatland carbon is important because it represents a large carbon stock that may be vulnerable to climate change. This work explores the expansion and/or shrinkage of Arctic peatlands using observations in two north–south transects in Canada and in Europe.
Handley J, Fewster RE, Sim TG, Hodson S, Parker B, Crichton K, Charman D, Anderson K, Garneau M, Väliranta M, Beilman DW, Swindles GT, Aquino-López M, Blaauw M, Comas X, Levesque E, Maire V, Addis H, Amesbury M, Fortier D, Mleczko M, Gallego-Sala A.   +21 more
europepmc   +2 more sources

Activity of 210Po and 210Pb in the riverine environs of coastal Kerala on the southwest coast of India

Journal of Radiation Research and Applied Sciences, 2016
The paper presents the systematic investigations on the activity concentrations of 210Po and 210Pb in the riverine environs of Bharathapuzha, Periyar and Kallada, the three major rivers of coastal Kerala. The radionuclides 210Po and 210Pb in sediment and
N. Venunathan, Y. Narayana
doaj   +1 more source

A 200-year 210Pb record from Greenland [PDF]

, 1997
A continuous profile of 210Pb activity extending back to 1766 has been developed for a firn/ice core collected at Site D in central Greenland in 1984. Unexpectedly high activities of 210Pb were found at the base of this core (0.032 pCi kg−1 in samples ...
Clausen, Crozaz, Crozaz, Crozaz, Dibb, Dibb, Finkel, Gromet, Gunten, Gäggeler, Henrik B. Clausen, Jack E. Dibb, Lachenbruch, Laj, Mayewski, Mayewski, Mayewski, McCall, Neftel, Nijampurkar, Robbins, Sanak, Steffensen   +22 more
core   +2 more sources

PRELIMINARY STUDY OF SEDIMENT AGES AND ACCUMULATION RATES IN JAKARTA BAY DERIVED FROM DEPTH PROFILES OF UNSUPPORTED ²¹⁰Pb

Indonesian Journal of Chemistry, 2010
Preliminary study of sediment ages and accumulation rates has been carried out in Jakarta Bay using unsupported 210Pb. 210Pb occurs naturally in sediments as one of the radioisotopes in the 238U decay series. The total 210Pb activity in sediments has two
Ali Arman Lubis, Barokah Aliyanta
doaj   +1 more source

²¹⁰Pb- ²²⁶Ra chronology reveals rapid growth rate of Madrepora oculata and Lophelia pertusa on world's largest cold-water coral reef [PDF]

, 2012
Here we show the use of the 210Pb- 226Ra excess method to determine the growth rate of two corals from the world's largest known cold-water coral reef, Røst Reef, north of the Arctic circle off Norway.
Bordier, L, Colin, C, Douville, E, Frank, N, Hall-Spencer, JM, Reyss, JL, Sabatier, P, Tisnérat-Laborde, N   +7 more
core   +5 more sources

Beryllium 7 and Lead 210 in the western hemisphere Arctic atmosphere: Observations from three recent aircraft-based sampling programs [PDF]

, 1992
Concentrations of the natural radionuclides 7Be and 210Pb were determined in aerosol samples collected in the western hemisphere Arctic during the recent NOAA Arctic Gas and Aerosol Sampling Program (AGASP 3) and NASA Global Tropospheric Experiment ...
Dibb, Jack E., Gregory, G L, Talbot, R.
core   +2 more sources

Sedimentary processes in the Thau Lagoon (France): From seasonal to century time scales [PDF]

, 2007
As a part of the MICROBENT programme, an investigation of the sedimentation framework was carried out at the water-sediment interface in the Thau Lagoon (French Mediterranean coast). Two main sites, C4 in the middle of the lagoon and C5 near oyster farms,
Gilbert, Franck, Jouanneau, Jean-Marie, Jézéquel, Didier, Lecroart, Pascal, Radakovitch, Olivier, Schmidt, Sabine, Weber, Olivier   +6 more
core   +4 more sources

A Determination of the Concentration Level of Lead 210 PB Isotope in Solid Samples for the Assessment of Radiation Risk Occuring in Coal Mines

Journal of Sustainable Mining, 2013
Lead 210Pb, an element of the natural uranium radioactive decay series, is not currently considered a source of radiation risk, especially in a radiation protection system in underground mines in Poland.
Michał Bonczyk
doaj   +1 more source

Application of the radionuclide 210Pb in glaciology – an overview

Journal of Glaciology, 2020
210Pb is an environmental radionuclide with a half-life of 22.3 years, formed in the atmosphere via radioactive decay of radon (222Rn). 222Rn itself is a noble gas with a half-life of 3.8 days and is formed via radioactive decay of uranium (238U ...
Heinz W. Gäggeler, Leonhard Tobler, Margit Schwikowski, Theo M. Jenk   +3 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