A recent study showed that the radiocarbon levels were found in amphipods. Amphipods are those creatures which feed on the organisms which fall on the surface of the ocean and the reason behind the radiocarbon elements was the nuclear bombing which was done back in the 1950s during the Cold War. Ning Wang, a geochemist at the Chinese Academy of Sciences conveyed in a statement, “Although the oceanic circulation takes hundreds of years to bring water containing bomb [carbon] to the deepest trench, the food chain achieves this much faster.”

The radiocarbon which is also called the ‘bomb carbon’ is also known as carbon-14 in scientific terms and they have been found about 7 miles low in the bottom of Pacific Ocean. carbon-14 does is not found naturally in the atmosphere as the elements of carbon-14 were found in amphipods due to the nuclear bombing test. When the test was conducted, the nitrogen and carbon got mixed up with each other and formed a radioactive element as a resultant.  Weidong Sun, a geochemist at the Chinese Academy of Sciences and one of the study’s co-authors, highlighted the strong interaction between creatures at the surface and the bottom of the ocean, as well as the need to be careful about humanity’s future actions. “There’s a very strong interaction between the surface and the bottom, in terms of biologic systems, and human activities can affect the biosystems even down to 11,000 meters, so we need to be careful about our future behaviors,” Sun said in the statement. “It’s not expected, but it’s understandable because it’s controlled by the food chain.”

Wang said, “Besides the fact that material mostly comes from the surface, the age-related bioaccumulation also increases these pollutant concentrations, bringing more threat to these most remote ecosystems. Rose Cory, an associate professor of earth and environmental sciences at the University of Michigan, said, “What is really novel here is not just that carbon from the surface ocean can reach the deep ocean on relatively short timescales, but that the ‘young’ carbon produced in the surface ocean is fueling, or sustaining, life in the deepest trenches.”


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