Measure Suspended Sediment Concentration News on Environmental XPRT

Dangerously high levels of endocrine disrupting chemicals found in marine sediments

Endocrine disrupting chemicals (EDCs) can interfere with the hormonal systems of both humans and wildlife. New research quantifying EDCs in marine environments in Greece found concentrations which present significant risks to sediment-dwelling organisms. Reduction and prevention of chemical pollution and subsequent harm to marine ecosystems is a key aim of the EU Marine Strategy Framework ...

Jan. 24, 2013

By European Commission, Environment DG

ASTM B761 - 06(2011) standard test method for particle size distribution of metal powders and related compounds by x-ray monitoring of gravity sedimentation

This test method is useful to both suppliers and users of powders, as outlined in 1.1 and 1.2, in determining particle size distribution for product specifications, manufacturing control, development, and research. Users should be aware that sample concentrations used in this test method may not be what is considered ideal by some authorities, and that the range of this test ...

Nov. 28, 2011

By ASTM International

Campbell Scientific acquires optical backscatter product line from D&A Instruments

Campbell Scientific, Inc., with over 34 years of experience in data acquisition and control products, has purchased the OBS product line from D&A Instrument Company. For many years, Campbell Scientific has sold the OBS-3 and OBS-3+ sensors, which monitor turbidity and suspended-sediment concentrations using optical backscatter (OBS) technology. Production and business operations have ...

Apr. 11, 2008

By Campbell Scientific, Inc.

SediView software suite

WES continue to assist *HR Wallingford with their ongoing development programme for SediViewTM, a software suite designed to more readily quantify suspended sediment concentrations during dredging operations for example using acoustic backscatter data from an ADCP. The work involves carrying out water quality profiles and water sampling concurrent with the ADCP ...

May 8, 2013

By Wallingford Environmental Surveys Ltd.

Monitoring heavy metal contamination in the German Wadden Sea

Human activities, including industrial development along coastal areas, risk polluting the marine environment with heavy metals which can harm human health and aquatic life. A recent study has found elevated levels of metal pollution in the Jade area of the German Wadden Sea, but concludes that metal contamination of the sediments would not be expected to have harmful effects on the marine ...

Oct. 17, 2013

By European Commission, Environment DG

Aquatec Group to launch advanced turbidity logger at Ocean Business

Aquatec Group are pleased to announce the launch of the latest addition to their Sediment? Solved range at Ocean Business in April – the AQUAlogger 310TY advanced turbidity logger. The instrument has new sensing capabilities, user friendly features and subsea data access. The compact logger measures turbidity to 10,000FTU (typical), with optional integral temperature and pressure sensors. ...

Mar. 16, 2017

By Aquatec Group Ltd

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. ...

Dec. 6, 2012

By European Commission, Environment DG

Effects of shale gas development on water quality: experiences from the Marcellus Shale

The impact of shale gas development on surface water quality has been explored in a recent study. Focusing on the Pennsylvania portion of the Marcellus Shale formation (which stretches from West Virginia to the Canadian border), the researchers conclude that shale gas wells and the treatment of shale gas extraction waste have measurable impacts on downstream surface water quality. The ...

Jun. 14, 2013

By European Commission, Environment DG

Mussels: Biomonitoring tools for pharmaceutical pollution in the marine environment?

Pharmaceutical pollution of marine environments has important biological consequences for aquatic organisms. This study investigated the effects on mussels of treatment with environmentally relevant levels of an antidepressant, fluoxetine, and a beta-blocker, propranolol, using biomarkers including DNA damage. The results showed that mussels are most vulnerable to these drugs in combination. Many ...

Oct. 1, 2015

By European Commission, Environment DG

Innovative dredging technology accelerates removal of residual contamination in Ashtabula River

The US EPA's Great Lakes National Program Office (GLNPO) and their non-federal sponsor, the Ashtabula City Port Authority, along with the State of Ohio, the U.S. Army Corps of Engineers (USACE), and a consortium of private companies collaborated to design and implement an innovative approach for addressing extensive sediment contamination in a portion of the Ashtabula River near Lake Erie. The ...

Nov. 6, 2008

By The Hazardous Waste Clean-Up Information (CLU-IN)

Banned contaminants can persist in environment for decades

The contamination of hazardous substances in estuaries can have negative effects on biodiversity. Using experimentally supported indicators, this study analysed the environmental risks posed by 22 different contaminants in UK estuaries and coastal waters, finding that substances banned over 20 years ago continue to persist in the marine environment. Estuaries, where rivers meet the sea, are home ...

Jul. 16, 2015

By European Commission, Environment DG

Beacon Institute Extends River Observatory Network to Fort Edward

Collaboration With General Electric Launches Real-Time Monitoring of the Upper Hudson RiverFORT EDWARD, NY -- (Marketwire) -- 06/24/10 -- Beacon Institute for Rivers and Estuaries announced today that it has deployed its first of many real-time monitoring stations that will monitor the northern reaches of the Hudson River. Launched in cooperation with ...

Jun. 24, 2010

China needs comprehensive and cost-effective strategies to address water pollution

China has become famous in recent years for its double-digit annual economic growth and rapid urbanization. Unfortunately, this economic success story is paired with serious environmental degradation, especially the pollution of China’s streams, rivers, lakes, and coastal areas. China suffers from growing shortages of fresh water resources and can ill-afford to have its lakes and rivers ...

Jun. 1, 2011

By World Resources Institute WRI

3 Mass. real estate development and construction companies fined for clean water violations (MA)

Subject to court approval, three related real estate development, construction and engineering companies will pay a $150,000 penalty for illegally discharging polluted stormwater from multiple Mass. construction sites. In addition the companies will perform a Supplemental Environmental Project (“SEP”) valued at approximately $300,000 which will further reduce stormwater pollution to ...

Jul. 21, 2010

By US EPA - Environmental Protection Agency

New study shows how nanoparticles can clean up environmental pollutants

Original story at MIT News Many human-made pollutants in the environment resist degradation through natural processes, and disrupt hormonal and other systems in mammals and other animals. Removing these toxic materials — which include pesticides and endocrine ...

Jul. 21, 2015

By MIT - Massachusetts Institute of Technology

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