News tagged with contaminants

Related topics: groundwater , drinking water , water , bacteria , outbreak

Rice as a source of arsenic exposure

A study just published by a Dartmouth team of scientists in the Proceedings of the National Academy of Sciences (PNAS) advances our understanding of the sources of human exposure to arsenic and focuses atten ...

Dec 05, 2011
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Talk of treaty ban on mercury concerns scientists

(AP) -- Scientists are warning officials negotiating a global treaty on mercury that banning the deadly chemical completely would be dangerous for public health because of the chemical's use in vaccines.

Oct 21, 2011
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Study: Medications in NYC water not a health risk

(AP) -- Tiny amounts of pharmaceuticals and personal care products detected in the drinking water of the nation's biggest city continue to pose no public health risks to residents, environmental officials said Friday.

Aug 20, 2011
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Sticky solution for surgical sealants

(Medical Xpress) -- A Monash University researcher has developed a new form of surgical sealant that is not only easier for surgeons to manipulate, allowing for a more effective application, but significantly ...

Jun 22, 2011
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Pollution

Pollution is the introduction of contaminants into an environment that causes instability, disorder, harm or discomfort to the ecosystem i.e. physical systems or living organisms . Pollution can take the form of chemical substances, or energy, such as noise, heat, or light energy. Pollutants, the elements of pollution, can be foreign substances or energies, or naturally occurring; when naturally occurring, they are considered contaminants when they exceed natural levels. Pollution is often classed as point source or nonpoint source pollution. The Blacksmith Institute issues annually a list of the world's worst polluted places. In the 2007 issues the ten top nominees are located in Azerbaijan, China, India, Peru, Russia, Ukraine and Zambia.

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