Blood lead is measured in units called micrograms per deciliter (mcg/dL).
A microgram is a unit of weight. There are one million micrograms in one gram.
A small paper clip weighs about one gram. If you were to split a paper clip into one million pieces, one of those pieces would be the weight of a microgram.
A deciliter is a unit of volume and is equal to one tenth of a liter, or a little less than half a cup.
Examples of Blood Lead Levels:
Although a blood lead level of 1 mcg/dL may seem small, no amount of lead in the body is considered safe for young children.