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Lake sediments are a sink for heavy metals13,14, and heavy metal concentrations are generally higher in sediment than in water15. Indeed, concentrations of heavy metals in water are sometimes lower than detection limits, meaning that sediment should be analysed to assess levels of contamination by...
Built structures have also been used for environmental mitigation and coastal protection purposes. Structures installed for environmental mitigation seek to address impacts from disturbances like blast fishing, ship grounding, coral mining, dredging, and storms, which can reduce reef height and complexity ...
finding is in contrast to a number of previous studies, which demonstrated that MOx was not a significant sink for methane and that a large fraction of methane escaped to the atmosphere19,28. For example, it was found that >95% of methane could be released to the atmosphere in the hypoxic...
Shallow hydrothermal vents are of pivotal relevance for ocean biogeochemical cycles, including seawater dissolved heavy metals and trace elements as well as the carbonate system balance. The Kueishan Tao (KST) stratovolcano off Taiwan is associated with
Nitrogen loss processes that transform fixed bioavailable nitrogen to inert dinitrogen gas (N2) are the prominent global nitrogen sink1. An estimated 44% of the world’s fixed N2 losses occurs on continental shelves2, which constitute only 7.5% of the global seafloor3. The Arctic Ocean and its...
The temperature (T1) of the heater and that of the heat sink (T2), after an initial 3.1.1. AbsolsutatgeeT, aercehcnoniqstuanetsand are monitored by a control system. There are many apparatus variants on the absolute method. The key approaches for soils and rocks are described below. ...