News tagged with heavy metals

Related topics: water , pollution

New rice contamination reported in China

Authorities are investigating rice mills in southern China following tests that found almost half of the staple grain in one of the country's largest cities was contaminated with a toxic metal.

May 21, 2013
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Elevated cadmium levels linked to disease

People with higher levels of cadmium in their urine—evidence of chronic exposure to the heavy metal found in industrial emissions and tobacco smoke—appear to be nearly 3.5 times more likely to die of liver disease than ...

May 09, 2013
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Fringe therapy may help heart patients, study finds

A treatment that removes heavy metals from the body has long been touted as an alternative therapy to combat hardening arteries. Now a 10-year, $31 million clinical trial has found that chelation therapy does help heart attack ...

Mar 29, 2013
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Scientists scrutinise the European diet

Italian risotto, Spanish paella and the British traditional Sunday roast (consisting of roasted meat, roast potatoes and vegetables). - these are only a small sample of foods which symbolise individual countries ...

Dec 18, 2012
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Poland pulls food suspected of having road salt

(AP) -- Polish health authorities have ordered the withdrawal from the market of more than 230,000 kilograms (500,000 pounds) of pickles, bread and other food suspected of containing industrial salt, the latest development ...

Mar 09, 2012
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Paternal exposures can adversely affect sperm

Acording to the California Teratogen Information Service (CTIS) Pregnancy Health Information Line, more studies are needed to evaluate men and the potential effect of illnesses, medications and lifestyle habits on fertility ...

Jun 20, 2011
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Heavy metal (chemistry)

A heavy metal is a member of an ill-defined subset of elements that exhibit metallic properties, which would mainly include the transition metals, some metalloids, lanthanides, and actinides. Many different definitions have been proposed—some based on density, some on atomic number or atomic weight, and some on chemical properties or toxicity. The term heavy metal has been called "meaningless and misleading" in an IUPAC technical report due to the contradictory definitions and its lack of a "coherent scientific basis". There is an alternative term toxic metal, for which no consensus of exact definition exists either. As discussed below, depending on context, heavy metal can include elements lighter than carbon and can exclude some of the heaviest metals. Heavy metals occur naturally in the ecosystem with large variations in concentration. Nowadays anthropogenic sources of heavy metals, i.e. pollution, have been introduced to the ecosystem. Waste derived fuels are especially prone to contain heavy metals so they should be a central concern in a consideration of their use.

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