Norwegian Radiation Protection Authority
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The data set shows results from the monitoring of radioactivity in seawater, sediment and biota in Norwegian marine areas and along the Norwegian coast.
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Eng
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The service shows results from the monitoring of radioactivity in sediments, seawater and biota in Norwegian marine areas and along the Norwegian coast
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The service shows results from the monitoring of radioactivity in sediments, seawater and biota in Norwegian marine areas and along the Norwegian coast
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The grid cell statistics are based on the national database of indoor radon measurements maintained by the Norwegian Radiation Protection Authority updated to 28th March 2012. Statistical parameters include X (X-co-ordinate of the centre of the cell); Y (Y-co-ordinate of the centre of the cell); N (number of radon concentration data in the cell); am (arithmetic mean Bq/m3); sd (standard deviation associated with am); aml (arithmetic mean of log concentrations); sdl (standard deviation associated with aml); gm (geometric mean); med (median); min (minimum); max (maximum); pct1 (actual percentage of concentrations above 100 Bq/m3); cdf1 (as pct1 but derived from the log-normal distribution of radon values in the cell); bay 1 (as cdf1 but modified using Bayesian statistics on the whole data set); Pct2, cdf2 and bay2 (percentages above 200 Bq/m3); Pct3, cdf3 and bay3 (percentages above 400 Bq/m3)