“…This paper serves to introduce five invited commentaries on the subject of the comparability of human health risk assessments (HHRA) and ecological risk assessments (ERA): Feijtel and Lally (1995); Suedel et al (1995); Hull, Suter, and Barnthouse (1995); Landis, Matthews, and Matthews (1995); and McCarty and Power (1995). As usual, we welcome Letters to the Editor providing additional commentary and, after appropriate review, will publish at least some of these in the next issue of the journal.…”