One out of every three children around the world is estimated to being poisoned by lead from water and air pollution, the United Nations warned on Thursday in a special report on the “massive and previously unknown” health crisis.
“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.”
Childhood lead exposure has been linked to a range of behavioural problems, as well as kidney damage and cardiovascular conditions later in life.
The problem, which occurs overwhelmingly in South Asia, is estimated to cost low-and middle-income countries almost $1 trillion over the children’s lifetimes.
Lead pollution comes from a variety of sources, including open-air furnaces, paint and petrol.
Lead piping in many countries also produces dangerous levels of the chemical in drinking water supplies.
The UN report said a leading source of the toxin was un-recycled or poorly disposed-of car batteries. In countries where child lead poisoning is most prevalent, the number of vehicles on the road has doubled since 2000.
The analysis of childhood lead exposure was compiled by the Institute of Health Metrics Evaluation, a leading global health research group partly funded by the Bill and Melinda Gates Foundation.
It found that while blood lead levels among children in richer countries had declined over the years, in poorer nations the problem had increased drastically.
“The good news is that lead can be recycled safely without exposing workers, their children, and surrounding neighbourhoods,” said Richard Fuller, president of Pure Earth, a charity that co-lead the study.
“People can be educated about the dangers of lead and empowered to protect themselves and their children.”
He said the economic and social returns on investing in reducing lead pollution could be “enormous”.
“Improved health, increased productivity, higher IQs, less violence, and brighter futures for millions of children across the planet,” said Fuller.
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