Air lead levels collected by the National Institute for Occupational Safety and Health (NIOSH) at 15 different areas within the Alma American Labs, Fairply, CO, for health hazard evaluation (HETA 89-052) on Februay 23, 1989.
NIOSH.89.air.lead.vec
A numeric vector with 15 elements containing air lead concentrations (\(\mu g/m^3\)).
Zou, G.Y., C.Y. Huo, and J. Taleban. (2009). Simple Confidence Intervals for Lognormal Means and their Differences with Environmental Applications. Environmetrics, 20, 172--180.