%0 Journal Article %T Impact of Human Activities on Soil Contamination %A Fernando Jos¨¦ Garbuio %A Jeffrey L. Howard %A Larissa Macedo dos Santos %J Applied and Environmental Soil Science %D 2012 %I Hindawi Publishing Corporation %R 10.1155/2012/619548 %U http://www.hindawi.com/journals/aess/2012/619548/