The slum at Nairobi, Kenya where 12-year-old Priscilla lives is nearby one of Africa's largest dumpsites. Now her blood is charged with lead, as electronic waste from the world over piles up unchecked.
Dandora is far and away the largest refuse dump in the 4.5-million-strong Kenyan capital, and with 2,000 tons of fresh waste every day, it also holds the dubious distinction of being a member of the "dirty 30" club of the world's most polluted sites.
According to a 2007 report by the Blacksmith Institute, the festering eyesore on the outskirts of the city is one of the two most polluted sites on the continent, the other being a lead mine in Zambia.
"Every time the dump spews a large cloud of smoke, I start coughing," says Priscilla, whose Saint John school in Korogocho slum is often shrouded in a cloud of thick noxious fumes.
Her blood lead level is 19.9 microgrammes per decilitre, twice the international norm.
Kenya prides itself on progressive measures to protect the environment, a major asset in its lucrative tourism industry, which attracts millions of visitors each year.
Yet Dandora's 75 acres of fuming waste -- a sea of plastic bags, used medical supplies, car batteries, dismantled printers and computers -- is a blot in the picture that is causing growing concern.
"Electronic waste contains a lot of lead and also mercury and cadmium (that) cause multiple toxic problems," said Njoroge Kimani, a biochemist who authored a report commissioned by the United Nations Environment Programme (UNEP).