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[3] [10] Blood lead levels 50 to 1,000 times higher than preindustrial levels are commonly measured in contemporary human populations around the world. [3] The National Academies evaluated this issue [12] in 1991 and confirmed that the blood lead level of the average person in the US was 300 to 500 times higher than that of pre-industrial humans.
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 ...
Exposure to lead in gasoline during childhood resulted in many millions of excess cases of psychiatric disorders over the last 75 years, a new study estimates. ... childhood blood lead levels from ...
Thus EP levels in conjunction with blood lead levels can suggest the time period of exposure; if blood lead levels are high but EP is still normal, this finding suggests exposure was recent. [31] [40] However, the EP level alone is not sensitive enough to identify elevated blood lead levels below about 35 μg/dL. [37] [unreliable medical source?
Over 170 million U.S.-born people who were adults in 2015 were exposed to harmful levels of lead as children, a new study estimates. Researchers used blood-lead level, census and leaded gasoline ...
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.
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 team behind the study used gas consumption data, population estimates and other data to calculate that as of 2015, more than 170 million Americans had had blood lead levels above 5 micrograms ...