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The Real Cost of Going Green

By Bloomberg Rankings - 2012-04-20T22:39:48Z

Photograph by ULTRA F/Getty Images

Company Symbol % Change
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Plant Power

In the late 1980s, NASA and the Associated Landscape Contractors of America found that some plants filter out volatile organic compounds -- chemicals that evaporate and are dangerous to the environment and humans. That could make plants attractive indoor air cleaners.

$14: Aloe vera plants clear formaldehyde and benzene found in cleaners and paints --
$15: Spider plants get rid of benzene, carbon monoxide --
$8: Snake plants remove formaldehyde, which is in many personal care products --
$13: Chrysanthemums filter out benzene found in glue, paint, plastics and detergents --
$30: Peace lilies remove formaldehyde, benzene and trichloroethylene --