sediment trap News

  • Product Profile: Sediment Traps

    McLane sediment traps provide exceptional performance for biogeochemical studies including radionucleide, paleoproxy, and carbon cycle analysis. They are also beneficial for environmental and pollution monitoring.  Sediment Traps collect vertically settling particles into individual sample bottles which are sealed when not in collection ...

  • India’s First Sediment Trap-Based Flux Studies in Southern Ocean

    In order to understand the response of the Southern Ocean as a carbon sink and its response to changing global climate conditions, a long-term flux study called “Southern Ocean Carbon Processes-SOCarP” was conceived at the National Centre For Antarctic and Ocean Research (NCAOR), India, using moored sediment traps. In early 2017, ...

  • Melting glaciers free trapped pollutants

    Melting glaciers in the Swiss Alps are releasing pollutants that have been frozen in the ice for decades. A recent study suggests that by accelerating global ice loss, global warming is likely to increase environmental contamination with persistent organic compounds that are no longer widely used, such as PCBs and DDT. Persistent organic pollutants are chemicals that can travel long distances in ...

  • Saharan dust enhances carbon trapping by ocean deserts

    A new study led by the National Oceanography Centre (NOC) reveals that that dust generated by land erosion has large repercussions for oceanic processes and planetary climate. Wind-driven Saharan dust to the remote Atlantic Ocean not only provides phytoplankton with essential nutrients to promote their growth, but the dust particles themselves are ballasting these carbon-rich microscopic plants, ...

  • Mangroves can trap toxic heavy metals, says study

    Researchers in New Caledonia have discovered that mangrove forests act as useful filters for toxic heavy metals, preventing these pollutants from contaminating the islands' waterways. The researchers — from France's Institute of Development Research (IRD), working in collaboration with regional research partners — say that ...


    By SciDev.Net

  • Ocean fertiliser could help plankton trap carbon, but by how much?

    Enhancing the ability of the ocean's phytoplankton bloom to lock away carbon is one proposal in the fight against climate change. A recent study in the Southern Ocean has found that natural sources of iron increase carbon absorption by phytoplankton by two to three times. This suggests that artificial fertilisation with iron could aid carbon removal, but in much lower quantities than predicted by ...

  • Constructed wetlands help keep farmland soil out of rivers

    Small, artificial wetlands can reduce river pollution by trapping soil and nutrients swept off agricultural land by rainfall, a recent study finds. The researchers recommend that they are used as a back-up option to soil management measures also designed to reduce runoff into rivers. Intensive agriculture can degrade and erode soil, allowing it to be washed into streams and rivers. This pollutes ...

  • CETCO Remediation Technologies Acquires Distribution Rights for Tensar International’s Triton® Marine Mattress System

    Combining the efforts of two industry leaders in remediation technologies promises to provide increased value to the environmental remediation industry. CETCO Remediation Technologies proudly announces a signed agreement with Tensar International Corporation (TIC) granting exclusive distribution rights to the Triton® Marine Mattress System in the United States and Canada for subaqueous ...


    By CETCO

  • Methane gas likely spewing into the oceans through vents in sea floor

    Scientists worry that rising global temperatures accompanied by melting permafrost in arctic regions will initiate the release of underground methane into the atmosphere. Once released, that methane gas would speed up global warming by trapping the Earth's heat radiation about 20 times more efficiently than does the better-known greenhouse gas, carbon dioxide. An MIT paper that appeared online ...

  • “Hybrid engineering” to protect eroding coastlines in Indonesia

    Demak district, Indonesia. This week will see the start of the construction of 2 permeable structures to protect the severely eroding coastline of Timbul Sloko village. Wetlands International, the Indonesian Ministry for Maritime Affairs and Fisheries (MMAF) and the Dutch engineering consultancy Deltares will work together to stabilise the coastline near Timbul ...


    By Wetlands International

  • Careful land management protects Mississippi watersheds

    Agricultural Research Service (ARS) scientists at the National Sedimentation Laboratory (NSL) in Oxford, Miss., are studying how farming practices and conservation strategies can improve water quality in the Yazoo River Delta and beyond. As part of this effort, research leader Martin Locke and his colleagues have been tracking changes in the Beasley Lake watershed for more than a decade. During ...

  • Microplastics discovered in the deep, open ocean

    A unique study by scientists at the National Oceanography Centre (NOC) will provide valuable new insights into the concentrations of microplastics in the open ocean from surface to the sea bed. Professor Richard Lampitt and Dr Katsia Pabortsava, who lead microplastic research at NOC, said “There is considerable uncertainty about the concentration and characteristics of the many ...

  • An economic case for restoring rivers and their ecosystem services

    Unless they are sustainably managed, commercial timber forests generally have low amounts of deadwood on the forest floor, as timber is harvested before it falls. However, this can affect local ecosystem services provided by forest streams. Naturally fallen logs can help purify stream water and prevent ...

  • Cowdray Estate prosecuted for Midhurst river pollution that killed 4,000 fish

    The Environment Agency has prosecuted the Cowdray Estate for polluting 5km of a West Sussex watercourse which resulted in the deaths of 4,000 fish at a Fernhurst fish farm. The Cowdray Estate of Cowdray Park, Easebourne, Midhurst, West Sussex appeared at Worthing Magistrates’ Court on Wednesday 9 October. The Estate pleaded guilty to the offence and was fined £5,000, ordered to pay ...

  • Expedition provides new insight on gas hydrates in Gulf of Mexico

    A joint-federal-agency 15-day research expedition in the northern Gulf of Mexico yielded innovative high-resolution seismic data and imagery that will help refine characterizations of large methane hydrate resources in the U.S. Outer Continental Shelf. According to the U.S. Department of Energy’s (DOE) Office of Fossil Energy (FE), the information will be used to refine estimates of the ...


    By US Department of Energy

  • EPA Orders Enbridge to Perform Additional Dredging to Remove Oil from Kalamazoo River

    The U.S. Environmental Protection Agency today issued an administrative order that requires Enbridge to do additional dredging in Michigan’s Kalamazoo River to clean up oil from the company’s July 2010 pipeline spill. EPA’s order requires dredging in sections of the river above Ceresco Dam, upstream of Battle Creek, and in the Morrow Lake Delta. EPA has repeatedly documented the ...

  • Vermont Ski area ordered to restore Wetlands (VT)

    A ski resort in Vermont has been ordered to restore wetlands and streams that were harmed when the resort discharged dredged and fill material into the waters during construction of its golf course in violation of the federal Clean Water Act. The U.S. Environmental Protection Agency last month ordered Jay Peak Resort, Inc. in Jay, Vt. to repair the damage done between 2004 and 2006 when it was ...

  • Louisiana Included in EPA Assessment of Nation’s Coasts

    The U.S. Environmental Protection Agency (EPA) recently awarded $485,000 to the Louisiana Department of Wildlife and Fisheries (LDWF) for testing water quality along the state’s Gulf Coast. The sampling results will contribute to EPA’s National Coastal Conditions Assessment (NCCA). The NCCA is a survey of our nation’s coastal waters which EPA and state partners conduct to ...

  • New Project To Improve Characterization of U.S. Gas Hydrate Resources

    The U.S. Department of Energy (DOE) today announced the selection of a multi-year, field-based research project designed to gain further insight into the nature, formation, occurrence and physical properties of methane hydrate‐bearing sediments for the purpose of methane hydrate resource appraisal. Since the passage of the Methane Hydrate Research and Development Act of 2000, the DOE has ...


    By US Department of Energy

  • Pollutants released by seafloor trawling affect marine life

    Commercial bottom trawling, the technique of pulling fishing gear across the seabed to catch fish and other seafood, releases pollutants trapped in the seabed, which can negatively affect local marine life and ecosystems. Recent findings from a Norwegian fjord show how mussels can take up high levels of contaminants released by trawling, with important health implications for consumers. ...

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