Washington, Apr 3 : High levels of lead concentrations in blood might put women at increased risk of death from coronary heart diseases (CHD), according to a new study.

The research led by University of Pittsburgh and the University of Maryland scientists found that those with blood lead concentrations above 8µg/dL were three times more likely to die of CHD.

During the study, the team followed a group of 65-87 year old women and recorded their cause of death.

"Lead is a toxic metal, and our results add to the existing evidence of adverse affects of lead on health as seen in an older cohort who experienced greater historic environmental lead exposure," said lead researcher Naila Khalil.

"Women with a blood lead concentration above 8µg/dL had a 73percent increased risk of dying. In particular, blood lead was associated with almost three-fold risk in CHD mortality," Khalil added.

The authors concluded, "While the damage may already have been done for some older people, it is important that we recognize the harm that environmental exposure to lead can cause.

We must remain vigilant and ensure that lead pollution is minimized for the sake of future generations'' health".

The study is published in BioMed Central''s open access journal Environmental Health. (ANI)