Letters to the Editor
1 Department of Pediatrics, Stanford University, Palo Alto, CA
Kawatu et al state that effects of lead on cognitive and neurobehavioral development in children may be seen at the 10 to 15 µg/dL blood lead (BPb) level, and they note that I did not cite many articles supporting a dose-dependent adverse effect of lead. Since I granted in my commentary that there may be an effect at BPb levels even below 10 µg/dL, I felt it unnecessary to cite many articles supporting this premise. The question is, at low BPb levels, are there important consequences for the individual child?




