mcg
- n one millionth (1/1,000,000) gram
- The guidelines for safe lead levels have been revised repeatedly over the years, from 60 mcgdl before 1970 to 25 mcgdl in 1985 to 10 mcgdl.
- Since the mid-1970s, when lead was taken out of gasoline, the median blood-lead levels in children have dropped from 15 mcg to 2 mcg per deciliter, but the CDC estimates that there .
- After six months of treatment, the women on 300 mcg of testosterone a day reported an 81% increase in satisfying sexual activity and a 66% increase in sexual desire.