Lead exposure may be responsible for nearly 10 times more deaths in the United States than previously thought, according to a new study.
The researchers concluded that nearly 412,000 deaths every year in the US can be attributed to lead contamination. That figure is 10 times higher than previously reported by the Institute for Health Metrics and Evaluation at the University of Washington in Seattle
The new study, which published Monday in The Lancet Public Health, tracked more than 14,000 adults over a period of about 20 years. It found that those individuals with an initial blood lead concentration at the 90th percentile had a 37% increase in all-cause mortality and a 70% increase in cardiovascular disease mortality compared to those with a blood lead concentration at the 10th percentile.