Nearly 1 in 3 children have dangerous amounts of lead in bloodstream: Study
Some 800 million children had lead levels of 5 micrograms per decilitre or higher in their bloodstream, levels considered high enough to impair the development of brains, nervous systems and vital organs such as heart and lungs, said the study.
Lead poisoning is affecting children on a massive and previously unknown scale, according to a new report launched by UNICEF and environmental group Pure Earth. The study says nearly one in three children around the world have high levels of lead in their bloodstream, putting them at risk of irreversible mental and physical damage.
Some 800 million children had lead levels of 5 micrograms per decilitre or higher in their bloodstream, the study showed, levels considered high enough to impair the development of brains, nervous systems and vital organs such as heart and lungs. Nearly half of these children live in South Asia, it says.
The World Health Organization and the US Centers for Disease Control and Prevention said the high levels of lead in children were a "cause for action", according to the report, which cited inadequate battery recycling and open-air smelters among the lead polluters.
The report features five country case studies where lead pollution and other toxic heavy metal waste have affected children. These are Kathgora, Bangladesh; Tbilisi, Georgia; Agbogbloshie, Ghana; Pesarean, Indonesia; and Morelos State, Mexico.
"The unequivocal conclusion of this research is that children around the world are being poisoned by lead on a massive and previously unrecognized scale," said the report, "The Toxic Truth: Children’s exposure to lead pollution undermines a generation of potential", released on Thursday.
“With few early symptoms, lead silently wreaks havoc on children’s health and development, with possibly fatal consequences,” said Henrietta Fore, UNICEF Executive Director. “Knowing how widespread lead pollution is – and understanding the destruction it causes to individual lives and communities – must inspire urgent action to protect children once and for all.”
The report cited a wide range of factors responsible for high levels of lead in children's blood, from inadequate recycling of lead-acid batteries and homes with peeling lead paint to lead-laced electronic waste dumps and food contamination due to lead-glazed pottery.
Lead-acid batteries could be a key culprit, with nearly 85% of the lead used worldwide going into their production, for use in telecommunications and power back-up equipment as well as conventional and electric vehicles.
While more than 95% of the lead from batteries is recycled in the United States and Europe, developing economies lack the facilities to reuse the heavy metal, the study said.
The report also said that the longer the toxin goes undetected in the bloodstream and remains untreated, the more dangerous and potentially lethal it becomes.