The phrase "a level of lead" is correct and usable in written English.
It can be used when discussing the concentration or amount of lead present in a substance or environment, often in contexts related to health, safety, or environmental regulations.
Example: "The report indicated that there was a level of lead in the water supply that exceeded safe drinking standards."
Alternatives: "a concentration of lead" or "an amount of lead".
"The companies are committed to reaching an agreement with C.P.S.C. staff on a level of lead in toy jewelry that will not harm children," the letter said.
The TEST for Lead Act would also require local education agencies with jurisdiction over the schools to notify parents, the administrator of the U.S. Environmental Protection Agency, and the state within 48 hours if a level of lead that exceeds a lead-action level, as identified by the EPA, is discovered.
"Can somewhere in the world someone drink a water that has a high level of lead that affects their blood?
Tests showed a drastic level of lead -- terrifying to Ms. Jefferson because she had lead poisoning as a child.
Lead poisoning, as any parent knows, is serious: a high level of lead in the blood harms developing brains, kidneys and other organs, and the advisory committee relied on recent research linking any elevated levels of lead in the blood with adverse cognitive and other physiological consequences.
Mays is now examining other well-preserved Victorian skeletons to establish a baseline level of lead.
A panel of experts convened by the Centers for Disease Control and Prevention concluded in 2012 that there is no reliable evidence for a safe level of lead.
Jeff Tittel, director of the New Jersey chapter of the Sierra Club, said that the measures specified in the letter, and the invocation of the Lead Contamination Control Act suggest a concerning level of lead was present in school water in 2014.
In this study, researchers found that a blood level of lead over two micrograms/deciliter (that's two, not 10 or 40) caused dramatic increases in heart attacks, strokes and death.
The analysis of these medicines confirmed the presence of a high level of lead.
Additional tests revealed a high level of lead in blood and urine.
