The haze between foreground and background gives this landfill a sense of scale. View and vote on all of The Week in Pictures selections: http://www.msnbc.msn.com/id/3842331/
A scavenger covers his face at Dandora rubbish dump in Nairobi on Friday, Oct. 5. A study commissioned by the Nairobi-based U.N. Environment Program found that half of 328 children tested near the site had lead concentrations in their blood exceeding internationally accepted levels.