News tagged with contaminants

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

Everyone 'is now polluted'

Virtually every human being on Earth can now be considered physiologically and biochemically polluted by human-made chemicals, a leading medical doctor will tell CleanUp 2013 in Melbourne today.

Sep 16, 2013
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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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NZ toxic contaminant levels halved, study shows

Blood samples taken by Massey researchers to measure the concentrations of toxic environmental contaminants, called persistent organic pollutants (or POPs), show their levels halved in the past 15 years among New Zealand's ...

Nov 21, 2013
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Radiation in Japanese children's thyroids

Forty-five percent of children tested in the region around Japan's stricken nuclear plant were found to have traces of radioactive elements in their thyroid glands, an official said Thursday.

Aug 18, 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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