GEOG 4210 Lecture Notes - Radon, Becquerel, List Of Lakes By Volume
Document Summary
Ph and conductivity are very constant for both july and march. Radon concentrations detected in lake fairly low, but still detectable. Concentrations in march were ~50% higher than the mean value for july (0. 85. However, during july campaign radon degassing did occur. Sediment of lake a found to be distributed homogenously over 5 sample points. Nature of sediment material did not allow experimental determination of diffusive radon flux term fdiff. Lowest value of the four radon concentrations detected during july campaign (3-a, Table 1) was considered to be representative of diffusive radon inputs from sediment into lake. I. e. sum of the radon sink terms ( rnirn+fatm) valid for sampling point 3-a was assumed to be balanced by fdiff only. Fadv + fdiff + rnira= rnirn+fatm, found that diffusive radon flux at point 3-a estimated to be 0. 17 0. 10 bq/m2/d. For calculation of radon inventory of lake water an average depth of 1 m was used.
