Tracing the upwelling process in the northern Benguela upwelling system (nBUS) by 129I

129I in sediment cores from the Celtic Sea by AMS through a microwave digestion process

“…Then, standard correction was carried out for all sample isotopic ratios. [20] Table I shows the values of ratio 129 I/ 127 I for instrumental blanks and standards, samples and chemical blanks. Instrumental blanks isotopic ratios are 129 I/ 127 I = 0.9-2 × 10 −13 .…”

Distribution of Anthropogenic 129I in the Western South China Sea and Its Application for Tracing the Sources and Movement of Pollution

“…Anthropogenic radionuclides, especially water-soluble radionuclides such as 3 H, 14 C, 90 Sr, 137 Cs, 129 I, and 236 U released from human nuclear activities, have shown excellent features as oceanographic tracers. − Among them, the long-lived 129 I ( T 1/2 = 15.7 Ma) has been utilized for tracing water mass movement and exchange and interactions between the atmosphere and hydrosphere in the North Sea, Arctic Ocean, Baltic Sea, North Atlantic, North Pacific, southwest coast of Africa, and Antarctica based on its conservative nature in the ocean and volatile feature of some species of iodine. − However, no such investigation was implemented in the SCS except the measurement of 129 I in six surface waters in northern SCS and two depth profiles of seawater in the eastern SCS. , …”