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Blood lead level (BLL), is a measure of the amount of lead in the blood. [ 1 ] [ 2 ] Lead is a toxic heavy metal and can cause neurological damage , especially among children, at any detectable level.
Elevated blood lead levels (BLLs) in adults can damage the nervous, hematologic, reproductive, renal, cardiovascular, and gastrointestinal systems.. Current research continues to find harmful effects in adults at BLLs previously considered harmless, such as decreased renal function associated with BLLs at 5 micrograms per deciliter (μg/dL) and lower, and increased risk of hypertension and ...
Lead is widely understood to be toxic to multiple organs of the human body, particularly the human brain. Concerns about even low levels of exposure began in the 1970s; in the decades since, scientists have concluded that no safe threshold for lead exposure exists. [2] [3] The major source of lead exposure during the 20th century was leaded ...
The World Health Organization (WHO) specifically notes that there is "no known safe blood lead concentration," and that even blood lead concentrations as low as 3.5 µg/dL (micrograms per ...
Children in northwest Jefferson County face a risk of lead poisoning more than nine times higher than other children in the county, an analysis shows.
Lead exposure during childhood has been tied to a variety of developmental problems, but a new study suggests it may not be associated criminal behavior.
In men, when blood lead levels exceed 40 μg/dL, sperm count is reduced and changes occur in volume of sperm, their motility, and their morphology. [74] A pregnant woman's elevated blood lead level can lead to miscarriage, prematurity, low birth weight, and problems with development during childhood. [75]
The Food and Drug Administration followed up with a warning against 17 ground cinnamon products found to contain high levels of lead. Short-term exposure to very low levels of lead may not result ...