How mercury emissions from industry can be greatly reduced

Sulfuric acid is the world's most used chemical. It is an important reagent used in many industries and it is used in the manufacture of everything from paper, pharmaceuticals and cosmetics to batteries, detergents and fertilizers. ...

Metal-filtering sponge removes lead from water

Northwestern University engineers have developed a new sponge that can remove metals—including toxic heavy metals like lead and critical metals like cobalt—from contaminated water, leaving safe, drinkable water behind.

How much cadmium is contained in cocoa beans?

Cocoa beans can absorb toxic heavy metals such as cadmium from the soil. Some cultivation areas, especially in South America, are polluted with these heavy metals, in some cases considerably. In combining different X-ray ...

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