Arsenic News on Environmental XPRT

Arsenic Removal Technology

Onion Equipment provides an innovative, cost-effective and reliable approach for the safe removal of arsenic from contaminated sites, municipal water supplies and private wells. OEarsenX is a polymer based bead with hydrous iron oxide nano-particles impregnated throughout the bead. This advanced hybrid material combines the best arsenic-binding chemistry, arsenic selective chemistry of iron ...

Dec. 5, 2006

By Onion Enterprises

Arsenic in groundwater: A world problem

In April this year, the Netherlands National Committee of IAH released their latest publication (No.5) “Arsenic in Groundwater: A World Problem”. During the past two decades it has become apparent that arsenic poisoning from groundwater has become a worldwide problem. Some of the best-documented and most severe cases of arsenic contaminated groundwater have been found in aquifers in Asia (e.g. ...

Aug. 8, 2008

By International Association of Hydrogeologists (IAH)

Arsenic Scrubber for Copper Mine Roaster

With an expanding global population, demand for minerals continues to grow. Development of non-traditional resources is expected to increase to meet this growing demand. This includesCopper Mine copper resources challenged by high levels of arsenic. Mining operations may incur penalties for arsenic in concentrates that exceed a certain amount. As ore with low levels of ...

Jan. 9, 2014

By Envitech, Inc.

Arsenic poisoning from drinking water

A study published in The Lancet this month calculated mortality rates associated with arsenic exposure from drinking water in a Bangladeshi population. Individual-level data was used to determine that 21.4% of all deaths and 23.5% of deaths associated with chronic disease in this population could be attributed to arsenic exposure. Millions of people worldwide are chronically exposed to arsenic ...

Jun. 22, 2010

Arsenic Leaches into Iowa Water Supply

Arsenic has numerous forms, one of which is arsenite. When arsenic is described as harmful, the specific type of arsenic being referred to is arsenite. It is the most common form of arsenic found in drinking water. According to the Centers for Disease Control and Prevention (CDC), ingesting small amounts of arsenite can cause nausea, vomiting, decreased production of red and white blood ...

Dec. 6, 2011

By EMSL Analytical, Inc.

Arsenic-free water for rural India

High levels of arsenic in the groundwater in areas of northeast India and Bangladesh are a recognised public health problem. However, the Isolux Technologies Division of MEL Chemicals, Inc. teamed up with an Indian engineering firm in 2009 to supply 39 arsenic treatment systems customised to the requirements of rural Indian villages. Water supply in rural northeast areas of India and neighbouring ...

Aug. 17, 2010

Identifying areas at risk for arsenic contamination

The contamination of groundwater with arsenic poses a risk to the health of millions of people, especially in the densely populated river deltas of Southeast Asia. To date, no method has been available for identifying high-risk areas without conducting costly sampling campaigns. Now, Eawag has developed a model that allows vulnerable areas to be pinpointed using existing data on geology and soil ...

Jul. 14, 2008

By Swiss Federal Institute for Environmental Science and Technology (EAWAG)

Arsenic in Rice Prompts FDA Investigation

The U.S. Food and Drug Administration (FDA) has been monitoring rice and rice products for traces of inorganic arsenic, a chemical that can cause serious long-term health effects under certain circumstances. The agency has already analyzed about 200 rice and rice product samples and plans to analyze an additional 1,000 samples. Common rice products include cereals, rice beverages, and rice cakes, ...

Oct. 3, 2012

By EMSL Analytical, Inc.

Report on Arsenic Removal from Groundwater

Kenson Associates has recently released a report on methods for arsenic removal from groundwater. This report reviews US EPA, World Band and WHO studies of this subject and critiques the practical methods used for this purpose based upon both their advantages and disadvantages. A brief case history of an arsenic removal project conducted by Dr. Robert Kenson, Principal of Kenson Associates, is ...

Oct. 13, 2006

Arsenic Illegally Released into California’s Groundwater

The Environmental Protection Agency (EPA) has fined a natural-gas fired power plant $13,500 for improper management of hazardous waste. According to the EPA, the plant, located in Yuba City, California, generated arsenic from the treatment of wastewater and failed to minimize releases of hazardous waste to the environment. Arsenic occurs naturally in the local groundwater, which the plant uses in ...

Jul. 30, 2012

By EMSL Analytical, Inc.

Arsenic wood field testing kit

Now available from Industrial Test Systems, Inc. is a quick, easy, field test kit that can confirm the presence of inorganic arsenic in wood. Arsenic Quick™ 481396-W kit is a modification of the US Patented, ETV Verified arsenic test for drinking water. This 10 minute test readily confirms the absence or presence of arsenic in any wood sample, including CCA treated lumber using safe ...

Aug. 26, 2008

By Industrial Test Systems, Inc.

Technique for arsenic-free water developed

A novel approach to arsenic removal could lead to a quick and inexpensive purification of drinking water in developing countries. Previous research demonstrated that arsenic can be removed from water using activated carbon or iron minerals, such as magnetite nanocrystals. However, such particles are too small to be effective in flowing water and they quickly degrade when exposed to the ...

Jul. 23, 2010

By SciDev.Net

Cow dung a detox for arsenic sludge

Bangladeshi scientists have found in cow dung an efficient agent to treat the toxic sludge that is generated by the removal of naturally-occurring arsenic in groundwater. "Microorganisms present in cow dung volatilise arsenic in the sludge," says Mohammad Azizur Rahman, research scientist at the geosciences centre of ...

Jun. 5, 2013

By SciDev.Net

Oil spills raise ocean arsenic levels

Oil spills can increase levels of toxic arsenic in the ocean, creating an additional long-term threat to the marine ecosystem. Research published in the journal Water Research describes how oil spills and leakages clog up seabed sediments, preventing them from bonding with arsenic and burying it safely underground. Arsenic is a poisonous chemical element found in minerals and is present ...

Jul. 14, 2010

Extreme Arsenic Levels Found in Arizona Water

PHOENIX, Arizona (ENS) - An Arizona water utility has been ordered to provide an alternative source of drinking water to customers within three days because it is currently serving water with arsenic concentrations more than 30 times the federal standard. Long term exposure to arsenic may lead to cancer of the bladder, lungs, skin, kidneys, nasal passages, liver and ...

Dec. 21, 2006

By Environment News Service (ENS)

Plastic bottles could clean arsenic-contaminated water

Chopped up plastic bottles covered in a common chemical may be a simple and inexpensive method for removing arsenic from drinking water. A team of chemists at Monmouth University, United States, found that bits of plastic coated with cysteine, a common molecule found in foods, bind to arsenic. ...

Sep. 7, 2011

By SciDev.Net

First accurate test for arsenic in soil developed

If you have a cat or dog who likes to hide under the deck or children who play on equipment made with pressure-treated wood, you’ll be glad to hear that analytical chemist Julian Tyson and colleagues at the University of Massachusetts Amherst recently developed the first-ever accurate test for arsenic compounds in soil, promising a significantly improved environmental and health impact ...

Apr. 3, 2009

By ScienceDaily

New Range of Portable Arsenic Test Kits

The new DigiPAsS and VisuPAsS systems from Palintest Ltd offer accurate, laboratory-standard testing in a portable field kit format. Both options use the well-established Gutzeit method to detect Arsenic levels in drinking water, up to and well beyond the WHO recommended maximum of 10 mg/l. The method used first converts all Arsenic in a sample to ...

Mar. 29, 2010

By Palintest Ltd - a Halma Company

Study Finds Eating Rice Increases Arsenic Levels

In the wake of a media frenzy surrounding high levels of arsenic in apple juice, a recently published study now indicates that eating rice may increase exposure to arsenic. Researchers tested urine samples from over 200 pregnant women, some of whom ate a half-cup of rice daily and some who did not. Testing revealed that women who consumed a half-cup of rice for at least two days had 53 ...

Dec. 13, 2011

By EMSL Analytical, Inc.

Scientists suggest alternative source of arsenic contamination

New research contradicts previous findings that arsenic contamination — an environmental crisis that affects more than 60 million people in the Bengal Basin — in groundwater may result from arsenic coming from man-made ponds, suggesting instead that it originates in sediments in aquifers. Groundwater ...

Oct. 28, 2011

By SciDev.Net

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