produced water testing News

  • Testing ecological toxicity in rivers

    Water quality in rivers is commonly classified according to its physical and chemical properties, but this may not fully describe its biological health. Polish researchers have tested a new method of water assessment, which looks at the toxicity to organisms of not just water, but also sediment and floodplain soil samples. This provides a more complete picture of a river's health and may help ...

  • Testing confirms US coastal waters less toxic than 20 years ago

    US environmental laws enacted in the 1970s are reducing overall contaminant levels in coastal waters of the United States, finds a 20 year study released today by scientists with the National Oceanic and Atmospheric Administration, NOAA. But the study shows continuing elevated levels of toxic metals and oils near urban and industrial areas of the coast. Oil related compounds from motor vehicles ...

  • Testing confirms toxic algae poisoned river and two reservoirs in US

    A California Superior Court judge has invited the North Coast Regional Water Quality Control Board to exercise its authority to regulate water quality to rid the Klamath River of toxic algae. The ruling by Judge Elaine Rushing comes in a lawsuit filed by Klamath Riverkeeper, the Karuk Tribe, and the Pacific Coast Federation of Fishermen's Associations, PCFFA, against the board. The groups filed ...

  • Online Water Toxicity Monitoring

    Monitoring of water toxicity is of special importance, especially when surface water or ground water are used for the preparation of drinking water. Since a variety of substances are harmful for human being reliable online monitoring is recommended. LAR's online toxicity analyzer ...


    By LAR Process Analysers AG

  • Continuous Toxicity Monitoring of Waste Water

    Toxicity is the most common disturbance to biological treatment processes – especially for nitrification. The continuous toxicity ...


    By LAR Process Analysers AG

  • Toledo warns residents not to drink the water

    About 400,000 people in and around Ohio's fourth-largest city were warned Saturday not to drink its water after tests revealed the presence of a toxin possibly from algae on Lake Erie. Concerned residents of the Toledo area descended on city stores, buying carts full of bottled water, bags of ice and flavored water and emptying shelves within hours of the advisory, which was issued ...


    By Associated Press

  • EPA plans new toxin guidelines for drinking water

    The U.S. Environmental Protection Agency plans to come out with new guidelines that will give cities and water treatment plants a blueprint for dealing with the type of algae-borne toxin that contaminated the drinking water in Ohio's fourth-largest city, a federal official said Wednesday. A new health advisory is on target to be finalized sometime next spring, said Peter Grevatt, director of the ...


    By Associated Press

  • Modified plant clears up deadly water toxin

    Plants may be a useful tool in clearing water of harmful toxins produced by blue-green algae, new research indicates. Some blue-green algae (cyanobacteria) — which grow in warm, nutrient-rich waters  — produce toxins that can severely damage the liver or nervous system. The effects of the toxins range from a mild illness to rapid death. They can remain in water supplies after the algae have been ...


    By SciDev.Net

  • ASTM E1366 - 11 standard practice for standardized aquatic microcosms: fresh water

    A microcosm test is conducted to obtain information concerning toxicity or other effects of a test material on the interactions among three trophic levels (primary, secondary, and detrital) and the competitive interactions within each trophic level. As with ...


    By ASTM International

  • After Toledo water scare, states ask EPA for help

    Algae that turned Lake Erie green and produced toxins that fouled the tap water for 400,000 people in the Toledo area are becoming a big headache for those who keep drinking water safe even far beyond the Great Lakes. But with no federal standards on safe levels for drinking algae-tainted water and no guidelines for treating or testing it either, water quality engineers sometimes look for ...


    By Associated Press

  • Continuous toxicity monitoring in drinking water and groundwater is highly is recommended

    The monitoring of water for unknown pollutants is of great importance, especially when surface water, drinking water or groundwater are used. Since a variety of substances are harmful for human being reliable online monitoring is recommended. LAR's online toxicity ...


    By LAR Process Analysers AG

  • Toxic algae blooming in warm water from California to Alaska

    A vast bloom of toxic algae off the West Coast is denser, more widespread and deeper than scientists feared even weeks ago, according to surveyors aboard a National Oceanic and Atmospheric Administration research vessel. This coastal ribbon of microscopic algae, up to 40 miles wide and 650 feet deep in places, is flourishing amid unusually warm Pacific Ocean temperatures. It now stretches from at ...


    By Associated Press

  • EPA Issues Health Advisories to Protect Americans from Algal Toxins in Drinking Water

    The U.S. Environmental Protection Agency (EPA) today issued health advisory values that states and utilities can use to protect Americans from elevated levels of algal toxins in drinking water. Algal blooms in rivers, lakes, and bays sometimes produce harmful toxins. Because utilities often use these water bodies as sources of drinking water, EPA has determined algal toxin levels in tap water ...

  • Continuous Toxicity Monitoring

    The monitoring of water for unknown pollutants is of great importance, especially when surface water, drinking water or ground water are used. Since a variety of substances are harmful for human being reliable online monitoring is recommended. LAR's online toxicity ...


    By LAR Process Analysers AG

  • Continuous toxicity monitoring of wastewater

    Toxicity is the most common disturbance to biological treatment processes – especially for nitrification. The continuous toxicity monitoring proactively protects the waste water treatment plant and hence, secures to keep the plant running. LAR's online toxicity analyzer ...


    By LAR Process Analysers AG

  • US House approves bill to step up fight against toxic algae

    Members of Congress have called for more aggressive federal action to prevent toxic algae from contaminating the Great Lakes and other waterways around the nation, such as an outbreak on Lake Erie last summer that left more than 400,000 people without safe tap water for two days. The House approved a bill this week that would require the U.S. Environmental Protection Agency to develop within 90 ...


    By Associated Press

  • Nanocoating on buildings releases potentially toxic particles to the air

    Weathering and abrasion are reported to cause titanium dioxide nanoparticles to escape from a self-cleaning coating for buildings. These particles may be toxic to humans and wildlife. The researchers have developed three indicators from the test results to help predict levels of nanoparticle release from these coatings. Photocatalytic coatings containing nano-sized particles of titanium dioxide ...

  • Decades after their Ban Toxic PCBs are Still a Threat

    The indoor air quality consulting experts at Future Environment Designs provide environmental testing solutions for polychlorinated biphenyls (PCBs).  Although no longer commercially produced in the United States, PCBs may still be present in products and materials produced before 1979.  PCBs belong to a broad family of man-made organic chemicals known as chlorinated hydrocarbons. ...


    By Cochrane & Associates, LLC

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