# Minor Arctic Rivers - Desorbed Radium # PI: Matthew Charette # Co-PI: Emma Bullock # Version date (v1): 2022-08-16 # Note: When not specifically listed, errors are 10%. ========================= River Sample_ID Sample_type Collection_method Location_notes Latitude Longitude Date_Collected Ra228_s Ra228_s_error Ra226_s Ra226_s_error ratio_228_to_226 ------------------------- Kolyma Kolyma Sediment (1) Bulk Sediment nd Kolyma main channel 68.965318 161.547775 2018-07-30 2.05 0.3 1.45 0.07 1.4 Kolyma Kolyma Sediment (1) Desorbed from sediment experimentally determined nd nd nd nd 0.39 0.05 0.33 0.01 1.2 Kolyma Kolyma Sediment (2) Bulk Sediment nd Mouth of Kolyma 69.621753 162.124557 2018-07-30 2.10 0.15 1.70 0.06 1.2 Kolyma Kolyma Sediment (2) Desorbed from sediment experimentally determined nd nd nd nd 0.29 0.04 0.20 0.01 1.4 Buskin Buskin Sediment Bulk Suspended Sediment 1 um Hytrex cartridge filter Buskin River 57.75616 -152.4836 2019-09-08 0.7 nd 0.2 nd 3.5 Buskin Buskin Sediment Desorbed from suspended sediment experimental results nd nd nd nd 0.1 0.02 0 0.01 nd Susitna Susitna Sediment Bulk Suspended Sediment 1 um Hytrex cartridge filter Susitna River 61.7214154 -150.2070422 2019-09-10 0.6 nd 0.6 nd 1.0 Susitna Susitna Sediment Desorbed from suspended sediment experimental results nd nd nd nd 0.1 0.03 0.1 0.01 1.0 Matanusk Matanuska Sediment Bulk Suspended Sediment 1 um Hytrex cartridge filter Matanusk River 61.501252 -149.2508464 2019-09-10 1.8 nd 1.8 nd 1.0 Matanusk Matanuska Sediment Desorbed from suspended sediment experimental results nd nd nd nd 0.07 0.02 0.1 0.01 0.7 Knik Knik Sediment Bulk Suspended Sediment 1 um Hytrex cartridge filter Knik River 61.4832632 -149.2514167 2019-09-10 0.9 nd 0.6 nd 1.5 Knik Knik Sediment Desorbed from suspended sediment experimental results nd nd nd nd 0.2 0.03 0.1 0.01 2.0