200 million people at risk from toxic pollution

Hundreds of millions of people worldwide risk exposure to toxic pollution, environmental groups warned Monday, publishing a list of the world's worst areas, including an African processing site for European electronics.

Pulp friction cleans up 'Brockovich' chemical

A byproduct of the manufacture of pulp using the sulfite process for making paper, sodium lignosulfonate, can be used to immobilize and soak up toxic chromium compounds from soil and water, according to research published ...

Russia's Yandex launches web browser to rival Google

Russia's dominant search engine Yandex on Monday launched its own Internet browser in the continuing face-off with its American rival Google for supremacy in the growing Russian market.

Helping materials handle extreme stress

Important pressurized water nuclear reactor components are being made from a nickel-base alloy that contains twice the amount of chromium as the material previously used. The new alloy, called alloy 690, performs better, ...

Toxic chromium found in Chicago's drinking water

Chicago's first round of testing for a toxic metal called hexavalent chromium found that levels in local drinking water are more than 11 times higher than a health standard California adopted last month.

State sets goal for limiting drinking water pollutant

The California Environmental Protection Agency has issued the nation's first public health goal for hexavalent chromium, the cancer-causing heavy metal made infamous after activist Erin Brockovich sued in 1993 over contaminated ...

The Spin Doctor

An electron spin can be compared to the needle of a compass that points either north or south. Some electrons in a full shell point up, canceling out the electromagnetic fields of an equal number of electrons that point down.

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