Millions of children and adults across America are exposed every day to a dangerous toxin that can permanently affect brain development and heart health, and it could already be in your home, according to a edition from Columbia University’s Mailman School of Public Health.
What’s happening?
Scientists have found that even small amounts of lead, far below levels previously considered safe, can harm both children and adults. The new paper from researchers at Columbia University, Simon Fraser University in Canada, Harvard Medical School and Boston Children’s Hospital shows that lead exposure lowers children’s IQ scores and increases the risk of heart disease in adults.
“The global burden of disease from lead exposure is staggering,” said Dr. Ana Navas-Acien of Columbia. “In contrast to the decline in coronary heart disease in industrialized countries, the rate has increased in industrialized countries over the past thirty years. One in three children worldwide – more than 600 million children – has lead poisoning.”
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Why is lead exposure a concern?
This toxic metal accumulates in our bodies over time, with 95% of it being stored in the bones of adults. For children, whose bodies absorb lead much more easily than adults, exposure can lead to learning and attention problems. The risk is greatest for toddlers in older homes with deteriorating paint.
Communities near industrial sites or airports face greater exposure from air pollution. And many Americans still get their water through outdated lead pipes.
What is being done about lead exposure?
The US has reduced lead exposure by almost 100% since 1970 by banning lead paint and lead-based gas. Now it’s cities and states take action by replacing old water pipes and cleaning up contaminated soil.
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You can protect your family by doing a few simple things changes at home. Start by running tap water 15–30 seconds before using it for drinking or cooking. This will flush out any lead that has leaked from the pipes.
If your home was built before lead paint was banned, consider having it tested. Many local health departments offer free testing services. Regular cleaning of floors and windowsills helps remove lead dust, especially in older homes.
Your community needs your support too. Support local initiatives to replace lead water pipes and clean up contaminated areas.
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